各种类型的数据转换字符串太麻烦了，有没有好的方法方式

各种类型的数据转换字符串太麻烦了，有没有好的方法方式

解决方案

OC里没有像C++那种重载的概念，但是有个宏可以实现类似的功能__attribute__((overloadable))

可以建一个文件类似ConvertToNSString.h，在放入以下代码即可实现一个方法转换任意类型的功能。

#ifdef __OBJC__

#import 

#endif

#if __has_extension(attribute_overloadable)

staticinline__attribute__((overloadable)) NSString* stringFrom(idarg) {

 return[NSStringstringWithFormat:@"%@", arg];

}

staticinline__attribute__((overloadable)) NSString* stringFrom(chararg) {

 return[NSStringstringWithFormat:@"%c", arg];

}

staticinline__attribute__((overloadable)) NSString* stringFrom(unsignedchararg) {

 return[NSStringstringWithFormat:@"%c", arg];

}

staticinline__attribute__((overloadable)) NSString* stringFrom(shortarg) {

 return[NSStringstringWithFormat:@"%hd", arg];

}

staticinline__attribute__((overloadable)) NSString* stringFrom(unsignedshortarg) {

 return[NSStringstringWithFormat:@"%hu", arg];

}

staticinline__attribute__((overloadable)) NSString* stringFrom(intarg) {

 return[NSStringstringWithFormat:@"%d", arg];

}

staticinline__attribute__((overloadable)) NSString* stringFrom(unsignedintarg) {

 return[NSStringstringWithFormat:@"%u", arg];

}

staticinline__attribute__((overloadable)) NSString* stringFrom(longarg) {

 return[NSStringstringWithFormat:@"%ld", arg];

}

staticinline__attribute__((overloadable)) NSString* stringFrom(unsignedlongarg) {

 return[NSStringstringWithFormat:@"%lu", arg];

}

staticinline__attribute__((overloadable)) NSString* stringFrom(longlongarg) {

 return[NSStringstringWithFormat:@"%lld", arg];

}

staticinline__attribute__((overloadable)) NSString* stringFrom(unsignedlonglongarg) {

 return[NSStringstringWithFormat:@"%llu", arg];

}

staticinline__attribute__((overloadable)) NSString* stringFrom(floatarg) {

 return[NSStringstringWithFormat:@"%f", arg];

}

staticinline__attribute__((overloadable)) NSString* stringFrom(doublearg) {

 return[NSStringstringWithFormat:@"%f", arg];

}

#endif