c++ - 在 C++ 中使用多个定界符拆分字符串

Question

<分区>

Answer 1

找到定界符后，您应该将子字符串的开头移动到 first_not_of 定界符处。基本改变:

delimPos++;

到:

delimPos = str.find_first_not_of(delim, delimPos + 1);

这将确保当您有 2 个或更多定界符时，delimPos 会移到最后一个之后。

或者你可以试试这个:

#include <iostream> 
#include <string>

int main()
{
    std::string str = "Hello, everyone! This is: COSC-1436, SP18";
    std::string const delims{ " .,:;!?" };

    size_t beg, pos = 0;
    while ((beg = str.find_first_not_of(delims, pos)) != std::string::npos)
    {
        pos = str.find_first_of(delims, beg + 1);
        std::cout << str.substr(beg, pos - beg) << std::endl;
    }

    return 0;
}

https://ideone.com/LJota9

Hello
everyone
This
is
COSC-1436
SP18