using namespace std::cout

using namespace std;intmain(){char a[50]; cout "

world{intmain// 程序的执行从哪里开始// main函数usingnamespacestd

cpp #include iostream> using namespace std; int main() { cout

hex(十六进制),oct(八进制)#include iostream>usingnamespacestd;int

然后就想着进入pe重装系统,可是加载pe也会出错,因为pe是

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