如何从字符串中删除第一个单词？ [英] How to remove first word from a string?

问题描述

我在寻找从 std :: string 中删除​​第一个单词的最佳方法。这是我有，但我觉得这是过于复杂的事情。什么是最好和最短的方法来做到这一点？感谢。

I'm looking for the best way to remove the first word from a std::string. This is what I have but I feel that this is overcompilicating things. What's the best and shortest way to do this? Thanks.

#include <string>
#include <iostream>
#include <sstream>

int main()
{
    std::string str{"Where is everybody?"};
    std::string first;
    if (std::stringstream{str} >> first)
    {
        str.erase(str.begin(), str.begin() + first.size());
    }
    std::cout << str; // " is everybody?"
}

推荐答案

下半部分的流：）

#include <string>
#include <iostream>
#include <sstream>

int main()
{
    std::string str{"Where is everybody?"};

    std::string first;
    std::istringstream iss{str};
    iss >> first;

    std::ostringstream oss;
    oss << iss.rdbuf();

    std::cout << oss.str(); // " is everybody?"
}

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