string和各内置类型的互换方法（stringstream的一种

作者：zhaozj
发表时间：2020-12-23 11:00
来源：未知

/*和c的转换函数比起来用法更为隐蔽，对初学者来说不够直观。*/

#include "iostream"#include "sstream"#include "string"#include "cstdlib"using namespace std;int main(void){/*以下是内置类型向string转换的解决方案*/ int ival; char cval; ostringstream out_string; string str; ival = 100; cval = 'w'; out_string << ival << " " << cval; str = out_string.str(); cout << str << endl;

/*以下是string向内置类型转换的解决方案*/ int itmpe; char ctmpe; str = "100k"; istringstream in_string( str ); in_string >> itmpe >> ctmpe; cout << itmpe << " " << ctmpe << endl; system( "PAUSE" ); return 0;}