qq_53306472的博客

vector 遍历操作#include "iostream"#include "math.h"#include "vector"using namespace std;int main() { int a[10]={1,2,3,4,5,6,7,8,9,10}; vector<int> b; vector<int> c(a,a+3); for(vector<int>::iterator it=c.begin();it<c.e

如何将整数快速转化为字符串呢？自然用sprintfa#include "stdio.h"int main(){ int a=1000; char b[4]; sprintf(b,"%d",a); printf("%s",b);}a是原来的整数，b是后来的字符串，完工！！