使用3.20.3版本的protoc编译proto2和proto3

测试3.20.3的protoc编译后的proto2和proto3版本文件是否可以正常使用

背景

在工作中发现,有同学在使用protoc把proto文件转成java文件以后,有些字段前面会添加路径,在某个PR里面特意把前面的路径删除掉了,所以为了验证路径是否会对java文件的使用产生影响,写了个简单的demo进行验证。

代码

proto代码

// test2.proto
syntax = "proto2";
package example;

message Person {
  required string name = 1;
  optional int32 age = 2 [default = 18];
}
// test3.proto
syntax = "proto3";
package example;

message Person {
  string name = 1;
  int32 age = 2;
}

使用protoc进行转换:
protoc版本:3.20.3
转换代码:

protoc --java_out=./out test2.proto
protoc --java_out=./out test3.proto

转换结果:

// Generated by the protocol buffer compiler.  DO NOT EDIT!
// source: test2.proto

package com.test.protobuf.out.example;

public final class Test2 {
  private Test2() {}
  public static void registerAllExtensions(
      com.google.protobuf.ExtensionRegistryLite registry) {
  }

  public static void registerAllExtensions(
      com.google.protobuf.ExtensionRegistry registry) {
    registerAllExtensions(
        (com.google.protobuf.ExtensionRegistryLite) registry);
  }
  public interface PersonOrBuilder extends
      // @@protoc_insertion_point(interface_extends:com.test.protobuf.out.example.Person)
      com.google.protobuf.MessageOrBuilder {

    /**
     * <code>required string name = 1;</code>
     * @return Whether the name field is set.
     */
    boolean hasName();
    /**
     * <code>required string name = 1;</code>
     * @return The name.
     */
    java.lang.String getName();
    /**
     * <code>required string name = 1;</code>
     * @return The bytes for name.
     */
    com.google.protobuf.ByteString
        getNameBytes();

    /**
     * <code>optional int32 age = 2 [default = 18];</code>
     * @return Whether the age field is set.
     */
    boolean hasAge();
    /**
     * <code>optional int32 age = 2 [default = 18];</code>
     * @return The age.
     */
    int getAge();
  }
  /**
   * Protobuf type {@code com.test.protobuf.out.example.Person}
   */
  public static final class Person extends
      com.google.protobuf.GeneratedMessageV3 implements
      // @@protoc_insertion_point(message_implements:com.test.protobuf.out.example.Person)
      PersonOrBuilder {
  private static final long serialVersionUID = 0L;
    // Use Person.newBuilder() to construct.
    private Person(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
      super(builder);
    }
    private Person() {
      name_ = "";
      age_ = 18;
    }

    @java.lang.Override
    @SuppressWarnings({"unused"})
    protected java.lang.Object newInstance(
        UnusedPrivateParameter unused) {
      return new Person();
    }

    @java.lang.Override
    public final com.google.protobuf.UnknownFieldSet
    getUnknownFields() {
      return this.unknownFields;
    }
    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return com.test.protobuf.out.example.Test2.internal_static_example_Person_descriptor;
    }

    @java.lang.Override
    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return com.test.protobuf.out.example.Test2.internal_static_example_Person_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              com.test.protobuf.out.example.Test2.Person.class, com.test.protobuf.out.example.Test2.Person.Builder.class);
    }

    private int bitField0_;
    public static final int NAME_FIELD_NUMBER = 1;
    private volatile java.lang.Object name_;
    /**
     * <code>required string name = 1;</code>
     * @return Whether the name field is set.
     */
    @java.lang.Override
    public boolean hasName() {
      return ((bitField0_ & 0x00000001) != 0);
    }
    /**
     * <code>required string name = 1;</code>
     * @return The name.
     */
    @java.lang.Override
    public java.lang.String getName() {
      java.lang.Object ref = name_;
      if (ref instanceof java.lang.String) {
        return (java.lang.String) ref;
      } else {
        com.google.protobuf.ByteString bs = 
            (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        if (bs.isValidUtf8()) {
          name_ = s;
        }
        return s;
      }
    }
    /**
     * <code>required string name = 1;</code>
     * @return The bytes for name.
     */
    @java.lang.Override
    public com.google.protobuf.ByteString
        getNameBytes() {
      java.lang.Object ref = name_;
      if (ref instanceof java.lang.String) {
        com.google.protobuf.ByteString b = 
            com.google.protobuf.ByteString.copyFromUtf8(
                (java.lang.String) ref);
        name_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }

    public static final int AGE_FIELD_NUMBER = 2;
    private int age_;
    /**
     * <code>optional int32 age = 2 [default = 18];</code>
     * @return Whether the age field is set.
     */
    @java.lang.Override
    public boolean hasAge() {
      return ((bitField0_ & 0x00000002) != 0);
    }
    /**
     * <code>optional int32 age = 2 [default = 18];</code>
     * @return The age.
     */
    @java.lang.Override
    public int getAge() {
      return age_;
    }

    private byte memoizedIsInitialized = -1;
    @java.lang.Override
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized == 1) return true;
      if (isInitialized == 0) return false;

      if (!hasName()) {
        memoizedIsInitialized = 0;
        return false;
      }
      memoizedIsInitialized = 1;
      return true;
    }

    @java.lang.Override
    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      if (((bitField0_ & 0x00000001) != 0)) {
        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
      }
      if (((bitField0_ & 0x00000002) != 0)) {
        output.writeInt32(2, age_);
      }
      getUnknownFields().writeTo(output);
    }

    @java.lang.Override
    public int getSerializedSize() {
      int size = memoizedSize;
      if (size != -1) return size;

      size = 0;
      if (((bitField0_ & 0x00000001) != 0)) {
        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
      }
      if (((bitField0_ & 0x00000002) != 0)) {
        size += com.google.protobuf.CodedOutputStream
          .computeInt32Size(2, age_);
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSize = size;
      return size;
    }

    @java.lang.Override
    public boolean equals(final java.lang.Object obj) {
      if (obj == this) {
       return true;
      }
      if (!(obj instanceof com.test.protobuf.out.example.Test2.Person)) {
        return super.equals(obj);
      }
      com.test.protobuf.out.example.Test2.Person other = (com.test.protobuf.out.example.Test2.Person) obj;

      if (hasName() != other.hasName()) return false;
      if (hasName()) {
        if (!getName()
            .equals(other.getName())) return false;
      }
      if (hasAge() != other.hasAge()) return false;
      if (hasAge()) {
        if (getAge()
            != other.getAge()) return false;
      }
      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
      return true;
    }

    @java.lang.Override
    public int hashCode() {
      if (memoizedHashCode != 0) {
        return memoizedHashCode;
      }
      int hash = 41;
      hash = (19 * hash) + getDescriptor().hashCode();
      if (hasName()) {
        hash = (37 * hash) + NAME_FIELD_NUMBER;
        hash = (53 * hash) + getName().hashCode();
      }
      if (hasAge()) {
        hash = (37 * hash) + AGE_FIELD_NUMBER;
        hash = (53 * hash) + getAge();
      }
      hash = (29 * hash) + getUnknownFields().hashCode();
      memoizedHashCode = hash;
      return hash;
    }

    public static com.test.protobuf.out.example.Test2.Person parseFrom(
        java.nio.ByteBuffer data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static com.test.protobuf.out.example.Test2.Person parseFrom(
        java.nio.ByteBuffer data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static com.test.protobuf.out.example.Test2.Person parseFrom(
        com.google.protobuf.ByteString data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static com.test.protobuf.out.example.Test2.Person parseFrom(
        com.google.protobuf.ByteString data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static com.test.protobuf.out.example.Test2.Person parseFrom(byte[] data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static com.test.protobuf.out.example.Test2.Person parseFrom(
        byte[] data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static com.test.protobuf.out.example.Test2.Person parseFrom(java.io.InputStream input)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseWithIOException(PARSER, input);
    }
    public static com.test.protobuf.out.example.Test2.Person parseFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseWithIOException(PARSER, input, extensionRegistry);
    }
    public static com.test.protobuf.out.example.Test2.Person parseDelimitedFrom(java.io.InputStream input)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseDelimitedWithIOException(PARSER, input);
    }
    public static com.test.protobuf.out.example.Test2.Person parseDelimitedFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
    }
    public static com.test.protobuf.out.example.Test2.Person parseFrom(
        com.google.protobuf.CodedInputStream input)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseWithIOException(PARSER, input);
    }
    public static com.test.protobuf.out.example.Test2.Person parseFrom(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseWithIOException(PARSER, input, extensionRegistry);
    }

    @java.lang.Override
    public Builder newBuilderForType() { return newBuilder(); }
    public static Builder newBuilder() {
      return DEFAULT_INSTANCE.toBuilder();
    }
    public static Builder newBuilder(com.test.protobuf.out.example.Test2.Person prototype) {
      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
    }
    @java.lang.Override
    public Builder toBuilder() {
      return this == DEFAULT_INSTANCE
          ? new Builder() : new Builder().mergeFrom(this);
    }

    @java.lang.Override
    protected Builder newBuilderForType(
        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
      Builder builder = new Builder(parent);
      return builder;
    }
    /**
     * Protobuf type {@code com.test.protobuf.out.example.Person}
     */
    public static final class Builder extends
        com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
        // @@protoc_insertion_point(builder_implements:com.test.protobuf.out.example.Person)
        com.test.protobuf.out.example.Test2.PersonOrBuilder {
      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return com.test.protobuf.out.example.Test2.internal_static_example_Person_descriptor;
      }

      @java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return com.test.protobuf.out.example.Test2.internal_static_example_Person_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                com.test.protobuf.out.example.Test2.Person.class, com.test.protobuf.out.example.Test2.Person.Builder.class);
      }

      // Construct using com.test.protobuf.out.example.Test2.Person.newBuilder()
      private Builder() {

      }

      private Builder(
          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
        super(parent);

      }
      @java.lang.Override
      public Builder clear() {
        super.clear();
        name_ = "";
        bitField0_ = (bitField0_ & ~0x00000001);
        age_ = 18;
        bitField0_ = (bitField0_ & ~0x00000002);
        return this;
      }

      @java.lang.Override
      public com.google.protobuf.Descriptors.Descriptor
          getDescriptorForType() {
        return com.test.protobuf.out.example.Test2.internal_static_example_Person_descriptor;
      }

      @java.lang.Override
      public com.test.protobuf.out.example.Test2.Person getDefaultInstanceForType() {
        return com.test.protobuf.out.example.Test2.Person.getDefaultInstance();
      }

      @java.lang.Override
      public com.test.protobuf.out.example.Test2.Person build() {
        com.test.protobuf.out.example.Test2.Person result = buildPartial();
        if (!result.isInitialized()) {
          throw newUninitializedMessageException(result);
        }
        return result;
      }

      @java.lang.Override
      public com.test.protobuf.out.example.Test2.Person buildPartial() {
        com.test.protobuf.out.example.Test2.Person result = new com.test.protobuf.out.example.Test2.Person(this);
        int from_bitField0_ = bitField0_;
        int to_bitField0_ = 0;
        if (((from_bitField0_ & 0x00000001) != 0)) {
          to_bitField0_ |= 0x00000001;
        }
        result.name_ = name_;
        if (((from_bitField0_ & 0x00000002) != 0)) {
          to_bitField0_ |= 0x00000002;
        }
        result.age_ = age_;
        result.bitField0_ = to_bitField0_;
        onBuilt();
        return result;
      }

      @java.lang.Override
      public Builder clone() {
        return super.clone();
      }
      @java.lang.Override
      public Builder setField(
          com.google.protobuf.Descriptors.FieldDescriptor field,
          java.lang.Object value) {
        return super.setField(field, value);
      }
      @java.lang.Override
      public Builder clearField(
          com.google.protobuf.Descriptors.FieldDescriptor field) {
        return super.clearField(field);
      }
      @java.lang.Override
      public Builder clearOneof(
          com.google.protobuf.Descriptors.OneofDescriptor oneof) {
        return super.clearOneof(oneof);
      }
      @java.lang.Override
      public Builder setRepeatedField(
          com.google.protobuf.Descriptors.FieldDescriptor field,
          int index, java.lang.Object value) {
        return super.setRepeatedField(field, index, value);
      }
      @java.lang.Override
      public Builder addRepeatedField(
          com.google.protobuf.Descriptors.FieldDescriptor field,
          java.lang.Object value) {
        return super.addRepeatedField(field, value);
      }
      @java.lang.Override
      public Builder mergeFrom(com.google.protobuf.Message other) {
        if (other instanceof com.test.protobuf.out.example.Test2.Person) {
          return mergeFrom((com.test.protobuf.out.example.Test2.Person)other);
        } else {
          super.mergeFrom(other);
          return this;
        }
      }

      public Builder mergeFrom(com.test.protobuf.out.example.Test2.Person other) {
        if (other == com.test.protobuf.out.example.Test2.Person.getDefaultInstance()) return this;
        if (other.hasName()) {
          bitField0_ |= 0x00000001;
          name_ = other.name_;
          onChanged();
        }
        if (other.hasAge()) {
          setAge(other.getAge());
        }
        this.mergeUnknownFields(other.getUnknownFields());
        onChanged();
        return this;
      }

      @java.lang.Override
      public final boolean isInitialized() {
        if (!hasName()) {
          return false;
        }
        return true;
      }

      @java.lang.Override
      public Builder mergeFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        if (extensionRegistry == null) {
          throw new java.lang.NullPointerException();
        }
        try {
          boolean done = false;
          while (!done) {
            int tag = input.readTag();
            switch (tag) {
              case 0:
                done = true;
                break;
              case 10: {
                name_ = input.readBytes();
                bitField0_ |= 0x00000001;
                break;
              } // case 10
              case 16: {
                age_ = input.readInt32();
                bitField0_ |= 0x00000002;
                break;
              } // case 16
              default: {
                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                  done = true; // was an endgroup tag
                }
                break;
              } // default:
            } // switch (tag)
          } // while (!done)
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          throw e.unwrapIOException();
        } finally {
          onChanged();
        } // finally
        return this;
      }
      private int bitField0_;

      private java.lang.Object name_ = "";
      /**
       * <code>required string name = 1;</code>
       * @return Whether the name field is set.
       */
      public boolean hasName() {
        return ((bitField0_ & 0x00000001) != 0);
      }
      /**
       * <code>required string name = 1;</code>
       * @return The name.
       */
      public java.lang.String getName() {
        java.lang.Object ref = name_;
        if (!(ref instanceof java.lang.String)) {
          com.google.protobuf.ByteString bs =
              (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          if (bs.isValidUtf8()) {
            name_ = s;
          }
          return s;
        } else {
          return (java.lang.String) ref;
        }
      }
      /**
       * <code>required string name = 1;</code>
       * @return The bytes for name.
       */
      public com.google.protobuf.ByteString
          getNameBytes() {
        java.lang.Object ref = name_;
        if (ref instanceof String) {
          com.google.protobuf.ByteString b = 
              com.google.protobuf.ByteString.copyFromUtf8(
                  (java.lang.String) ref);
          name_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }
      /**
       * <code>required string name = 1;</code>
       * @param value The name to set.
       * @return This builder for chaining.
       */
      public Builder setName(
          java.lang.String value) {
        if (value == null) {
    throw new NullPointerException();
  }
  bitField0_ |= 0x00000001;
        name_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>required string name = 1;</code>
       * @return This builder for chaining.
       */
      public Builder clearName() {
        bitField0_ = (bitField0_ & ~0x00000001);
        name_ = getDefaultInstance().getName();
        onChanged();
        return this;
      }
      /**
       * <code>required string name = 1;</code>
       * @param value The bytes for name to set.
       * @return This builder for chaining.
       */
      public Builder setNameBytes(
          com.google.protobuf.ByteString value) {
        if (value == null) {
    throw new NullPointerException();
  }
  bitField0_ |= 0x00000001;
        name_ = value;
        onChanged();
        return this;
      }

      private int age_ = 18;
      /**
       * <code>optional int32 age = 2 [default = 18];</code>
       * @return Whether the age field is set.
       */
      @java.lang.Override
      public boolean hasAge() {
        return ((bitField0_ & 0x00000002) != 0);
      }
      /**
       * <code>optional int32 age = 2 [default = 18];</code>
       * @return The age.
       */
      @java.lang.Override
      public int getAge() {
        return age_;
      }
      /**
       * <code>optional int32 age = 2 [default = 18];</code>
       * @param value The age to set.
       * @return This builder for chaining.
       */
      public Builder setAge(int value) {
        bitField0_ |= 0x00000002;
        age_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional int32 age = 2 [default = 18];</code>
       * @return This builder for chaining.
       */
      public Builder clearAge() {
        bitField0_ = (bitField0_ & ~0x00000002);
        age_ = 18;
        onChanged();
        return this;
      }
      @java.lang.Override
      public final Builder setUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.setUnknownFields(unknownFields);
      }

      @java.lang.Override
      public final Builder mergeUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return super.mergeUnknownFields(unknownFields);
      }


      // @@protoc_insertion_point(builder_scope:com.test.protobuf.out.example.Person)
    }

    // @@protoc_insertion_point(class_scope:com.test.protobuf.out.example.Person)
    private static final com.test.protobuf.out.example.Test2.Person DEFAULT_INSTANCE;
    static {
      DEFAULT_INSTANCE = new com.test.protobuf.out.example.Test2.Person();
    }

    public static com.test.protobuf.out.example.Test2.Person getDefaultInstance() {
      return DEFAULT_INSTANCE;
    }

    @java.lang.Deprecated public static final com.google.protobuf.Parser<Person>
        PARSER = new com.google.protobuf.AbstractParser<Person>() {
      @java.lang.Override
      public Person parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        Builder builder = newBuilder();
        try {
          builder.mergeFrom(input, extensionRegistry);
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          throw e.setUnfinishedMessage(builder.buildPartial());
        } catch (com.google.protobuf.UninitializedMessageException e) {
          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
        } catch (java.io.IOException e) {
          throw new com.google.protobuf.InvalidProtocolBufferException(e)
              .setUnfinishedMessage(builder.buildPartial());
        }
        return builder.buildPartial();
      }
    };

    public static com.google.protobuf.Parser<Person> parser() {
      return PARSER;
    }

    @java.lang.Override
    public com.google.protobuf.Parser<Person> getParserForType() {
      return PARSER;
    }

    @java.lang.Override
    public com.test.protobuf.out.example.Test2.Person getDefaultInstanceForType() {
      return DEFAULT_INSTANCE;
    }

  }

  private static final com.google.protobuf.Descriptors.Descriptor
    internal_static_example_Person_descriptor;
  private static final 
    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
      internal_static_example_Person_fieldAccessorTable;

  public static com.google.protobuf.Descriptors.FileDescriptor
      getDescriptor() {
    return descriptor;
  }
  private static  com.google.protobuf.Descriptors.FileDescriptor
      descriptor;
  static {
    java.lang.String[] descriptorData = {
      "\n\013test2.proto\022\007example\"\'\n\006Person\022\014\n\004name" +
      "\030\001 \002(\t\022\017\n\003age\030\002 \001(\005:\00218"
    };
    descriptor = com.google.protobuf.Descriptors.FileDescriptor
      .internalBuildGeneratedFileFrom(descriptorData,
        new com.google.protobuf.Descriptors.FileDescriptor[] {
        });
    internal_static_example_Person_descriptor =
      getDescriptor().getMessageTypes().get(0);
    internal_static_example_Person_fieldAccessorTable = new
      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
        internal_static_example_Person_descriptor,
        new java.lang.String[] { "Name", "Age", });
  }

  // @@protoc_insertion_point(outer_class_scope)
}

测试java文件是否可以正常使用

public static void testResolve() throws InvalidProtocolBufferException {
        byte[] protoBytes = new byte[] {
                0x0A, 0x05, 0x41, 0x6C, 0x69, 0x63, 0x65, // name: "Alice"
                0x10, 0x14                                // age: 20
        };

        Test2.Person person = Test2.Person.parseFrom(protoBytes);

        // 4. 验证
        System.out.println(person.getName()); // Alice
        System.out.println(person.getAge());  // 20
    }

测试结果:
在这里插入图片描述
测试结论:变量前面的路径存在与否,都可以正常使用protoc转换后的java文件

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