C++学习（四八零）noskipws skipws

Posted 2022-02-11 hankern

#include <iostream>
#include <sstream>

int main()

        char a, b, c;

        std::istringstream iss("  123");
        iss >> std::skipws >> a >> b >> c;      // 忽略掉前面的空白字符，PS: 默认std::skipws是置位的
        std::cout << a << b << c << std::endl; // 123

        iss.seekg(0);
        iss >> std::noskipws >> a >> b >> c; // 不忽略空白字符，将其读取
        std::cout << a << b << c << std::endl; // ..1

        return 0;