C++ char float int string 之间的转换

string str = "123";

 

string 转 int

int i = atoi( str.c_str() );

 

string 转 float

float f = atof( str.c_str()  );

 

string 转 char

char c [32];

strintf( c, "%s", str.c_str() );

 

char float int 转 string

string str1;

strintf( c, "%d%.2f", i, f );

str1 += c;

 

转载于:https://www.cnblogs.com/H-K-Home/p/5976376.html