[C++]_[初级]_[删除字符串中的前后空格]

#include <stdio.h>#include <vector>#include <string>#include <iostream>using namespace std;int main(int argc,char *argv[]){std::string str(" 123 343 4343 -");char c =' ';vector<char>::iterator it;for(it =str.begin();it!= str.end();){if((*it)==c){it = str.erase(it); //返回一个新的迭代器}else{++it;}}cout<<"str:"<<str<<endl;return 0;}