摘要：
判断整形- (BOOL)isPureInt:(NSString *)string{ NSScanner* scan = [NSScanner scannerWithString:string]; int val; return [scan scanInt:&val] && [scan isAtEnd];} 判断浮点型- (BOOL)isPureFloat:(NSString *)string{ NSScanner* scan = [NSScanner scannerWithString:string]; float val; return [scan scan... 阅读全文