血的教训，下次开工程 一点要写好判断空字符串方法

+ (BOOL)isEmptyObject:(NSObject *)object

{

if ([object isEqual:[NSNull null]] || object == nil)

{

return YES;

}

else if ([object isKindOfClass:[NSString class]])

{

NSString *string = (NSString *)object;

        

if (0 == [string length])

{

return YES;

}

}

    

return NO;

}

转载于:https://www.cnblogs.com/yunis/p/3919825.html