今天在班里学了自增操作，先看一个简单的案例：public class Test{
public static void main(String[] args){
int a=10;
int m=7+a++;// m=7+a a=a+1
System.out.println(a);//11
System.out.println(m);/
总结：charAt()是返回字符型，把字符串拆分成某个字符，返回指定位置的字符。可以把字符串看成char型数组package com.sads;
///输出一个大写英文字母的
public class XIE {
public static void main(String[] args) {
String s="hello world i lkie fjds";
char c=s.ch
Matlab：成功解决In an assignment A(I)=B,the number of elements in B and I must be the same目录解决问题解决方法解决问题In an assignment A(I)=B,the number of elements in B and I must be the same...
Matlab：成功解决In an assignment A(I)=B,the number of elements in B and I must be the same目录解决问题解决方法解决问题In an assignment A(I)=B,the number of elements in B and I must be the same...
解决Matlab遇到的"In an assignment A(I)=B, the number of elements in B and I must be the same"在Matlab编程过程中，有时候会遇到以下错误信息："In an assignment A(I)=B, the number of elements in B and I must be the same"（在赋值操作A(I
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