NSString与int和float的相互转换

NSString *tempA=@"123456";

NSString *tempB=@"45678";

1，字符串拼接

 NSString *TEMP = [NSStringstringWithFormat:@"%@%@",tempA,tempB];

2，字符转int

intTEMP = [TEMP intValue];

3，int转字符

NSString *stringTEMP = [NSStringstringWithFormat:@"%d",intTEMP];

4，字符转float

 float floatTEMP= [stringTEMP floatValue];

5，float转字符

NSString *StringFloat = [NSStringstringWithFormat:@"%f",floatTEMP];