kaikai_1019的博客#include<...void exchange(int *a,int *b) { int tmp; tmp=*b; *b=*a; *a=tmp; } void exchange_error(int a,int b) { int tmp; tmp=b; b=a; a=tmp; } int main() { int a=4; int b=3; exc
怪伽先森的博客困惑的地方先贴上代码,显示让我一开始很困惑的地方package com.lizi.basic;public class IntegerDemo { public static void main(String[] args) { Integer a = new Integer(3); Integer b = 3; int c = 3;