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转载 Hibernate学习

HibernateHibernate的核心是对象关系的映射，对象和关系型数据库之间的映射通常使用XML文档来实现，映射文件的命名规则为*.hbm.xml；<hibernate-mapping package = "JavaBean所在包全位置"></hibernate-mapping>hibernate映射文件由hibernate-mapping节点定义映射内容并且指定所对应的JavaBean的位置每个*.hbm.xml文件都有唯一一个根元素 <hibern

2021-12-22 17:32:06 100

原创 TCP协议客与服

TCP协议客户端package testlu;import java.io.IOException;import java.io.OutputStream;import java.net.InetAddress;import java.net.Socket;import java.net.UnknownHostException;import java.nio.charset.StandardCharsets;public class TcpClient { public st

2021-06-03 00:31:56 146

原创常用DOS命令

常用DOS命令切换盘符：直接输入列入F：查看盘下目录：dir返回上一级：cd ..清理屏幕：cls退出终端：exit查看ip：ipconfig创建目录：md 文件名创建文件：cd>1.txt删除文件：del 1.txt移除目录:rd 目录名...

2021-03-12 18:46:42 133

原创 Markdown练习

Markdown标题三级标题字体粗体（两边各自两个星号）：HelloWorld斜体（两边各自一个星号）：HelloWorld粗粗体（两边各自三个星号）：HelloWorld删除线（两边各自两个波浪线）：HelloWorld引用进入wait的博客吧分割线图片超链接跳转到wait博客吧列表 3 4 表格名字姓名生日男露露 12 也可...

2021-03-12 00:41:48 123

转载 Python and json

储存数据到json：import jsonnumbers = [‘123423’,‘234234’,‘234234’]filename = ‘/Users/macbook/Desktop/4.json’with open(filename,‘w’)as f_obj:json.dump(numbers,f_obj)读取json中的数据：import jsonfilename = ‘/...

2018-12-16 21:13:38 151

转载 python关于文件

对空rtf文件进行写入：filename = ‘/Users/macbook/Desktop/2.rtf’with open(filename,‘w’) as file_object:file_object.write(‘I love the moment2’)print(‘OK’)原有基础上添加：filename = ‘/Users/macbook/Desktop/2.rtf’wi...

2018-12-16 20:51:29 118

转载 python标准库之ordereddict

from collections import OrderedDictfavorite_languages = OrderedDict()favorite_languages[‘jen’] = ‘python’favorite_languages[‘sarah’] = ‘c’favorite_languages[‘edward’] = ‘ruby’favorite_languages[‘...

2018-12-16 18:58:49 285

转载 python一个模块储存多个类

Car.py:class Car():def init(self,make,model,year):self.make = makeself.model = modelself.year = yearself.odometer_reading = 0def get_descriptive_name(self):long_name = str(self.year)+’’+self.m...

2018-12-16 16:03:40 2673

转载 Python关于继承单个类

Car.py:class Car():def init(self,make,model,year):self.make = makeself.model = modelself.year = yearself.odometer_reading = 0def get_descriptive_name(self):long_name = str(self.year)+’’+self.m...

2018-12-16 15:17:24 187

转载 python继承（car）

class Car():“”“一次模拟汽车的简单尝试”""def __init__(self, make, model, year): self.make = make self.model = model self.year = year self.odometer_reading = 0def get_descriptive_name(self): ...

2018-12-16 14:04:13 1056

转载 Java-字符串的删插增

public class Stringh { public static void main(String[] args) { StringBuffer sbf = new StringBuffer(“What do you want”); sbf = sbf.delete(0,2); System.out.println(sbf.toString()...

2018-07-27 21:55:35 246

转载 Java-字母大小写转换

public class Stringh { public static void main(String[] args) { String a = “abc IKE”; String b =”CDF dkfm”; String strl = a.toLowerCase(); String strU = b.toUp...

2018-07-27 21:11:55 174

转载 java学习1-识别手机号码是否正确

package hello;import java.util.Scanner;public class ahh { public static void main(String[] args) { String regex = "(13[0-9]|15[0123456789]||18[056789])\\d{8}"; while(true) { Stri...

2018-07-25 20:25:30 318

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