定义一个数组

matlab输入一个函数,matlab怎么自定义一个函数,其自变量是一个数组,如输入一个数组a,函数功能输出一个数组是原数组乘以10... 建立一个函数的M文件步骤:1,在命令窗口中输入edit,弹出一个函数编辑框用于你自定义一个函数2,函数的建立:格式为function空格f=myfun(x,y),这里f是你函数的输出,myfun是你这个函数的函数文件名(这个名字你可以自己随便订的),然后括号里边的就是你的输入。如这个函数:function f=myfun(x1,x2)f=x1*x2(这个是你的函数的功能,及表达式)你构造好这个函数... 阅读详情

数组基础

把数组马成一排进行存放,数组分为索引和对应的值,索引从0开始,最大为n-1

数组的索引可以没有语义,也可以有语义,但并非所有有语义的索引都适用数组,数组最大优点是可以快速查询

制作属于我们自己的数组

size  实际数组中元素数, capacity 代表数组容量定义一个数组,包含数组类型、数组名、数组容量(数组长度即可不用单独定义)、数组中元素数几个私有变量,注意定义数组容量时可以指定容量大小也可以默认,后面的公有属性增删改查等等定义相关方法即可。

public class Array{
    pritvate int[] data;
    private int size;
//私有成员变量 数组类型,名字,存储数
// 构造函数,传入数组的容量capacity构造Array
public Array(int capacity){
      data = new int[capacity];
      size = 0;
}

//无参数的构造函数,默认数组的容量capacity=10
public Array(){
     this(capacity: 10);
}
//获取数组中元素的个数
public int getSize(){
   return size;
}
//获取数组的容量
public int getCapacity(){
return data.length;
}
//返回数组是否为空
public boolean isEmpty(){
return size==0;
}
 

 

c++自定义一个动态数组vector 一、前言  探索c++中vector容器和模板类的使用,本文使用的是codeblock。 二、   1.新建class Myvector    在codeblock上方new —>new class     创建好类了,首先添加模板 template 这里说一下模板的作用模板是C++支持参数化多态的工具,使用模板可以使用户为类或者函数声明一种一般模式 阅读详情

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深度学习工具包 DeepLearningToolbox

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