C++ string整行读取带空格的字符串

getline函数

定义：

istream& getline (istream& is, string& str, char delim);
istream& getline (istream& is, string& str);

示例：

// extract to string
#include <iostream>
#include <string>

int main ()
{
  std::string name;

  std::cout << "Please, enter your full name: ";
  std::getline (std::cin,name);
  std::cout << "Hello, " << name << "!\n";

  return 0;
}

参考资料：

• https://www.cnblogs.com/morui/p/11046579.html
• http://www.cplusplus.com/reference/string/string/getline/?kw=getline