sstream

stringstream用法整理
C++编程语言中stringstream类介绍

#include <iostream>
#include <sstream>

using namespace std;

int main(){
    string s;
    getline(cin,s);

    stringstream ssin(s);//其中ssin可以替换成任何变量名

    int a, b;
    string str;
    double c;

    ssin >> a >> str >> b >> c;//ssin 和 cin 等价
    cout << a << endl << str << endl << b << endl << c << endl;

    return 0;

}

sscanf 用法

#include <iostream>
#include <sstream>

using namespace std;

int main(){
    char s[1000];
    fgets(s, 1000, stdin);

    int a, b;
    char str[100];
    double c;

    sscanf(s, "%d%s%d%lf", &a, &str, &b, &c);

    printf("%d\n%s\n%d\n%lf\n", a, str, b, c);

    return 0;

}