c++程序设计第三版例题1.2 求两数的和

#include <iostream> using namespace std; int main(){ //求两数之和 int a,b,sum; a=11; b=22; sum=a+b; cout<<"两个数a与b的和是"<<"sum="<<sum; } compare with the up program, think the output? #include <iostream> usin

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