使用宏定义替换代码，有可能出现重复定义

@(逆向之师傅和我)

经常出现重复定义这样的问题。那么我们就要去给他设置域。这个是结果.

#import "ViewController.h"
#import "NSString+LRExtension.h"

#define LWUpDefineFunction(name,key) \
{\
NSString *add = [NSString stringWithFormat:@"temp-%@",name];\
NSString *up = [add uppercaseString];\
key = up;\
}

@interface ViewController ()
@property (weak, nonatomic) IBOutlet UILabel *resultLabel;
@property (weak, nonatomic) IBOutlet UITextField *textFiled;
@property (weak, nonatomic) IBOutlet UILabel *otehrLabel;

@end

@implementation ViewController

- (void)viewDidLoad{
    [super viewDidLoad];
    
    {
        NSString *name = @"wangxin";
    }
    
    NSString *k1 = nil;
    LWUpDefineFunction(@"adsf",k1)
    NSLog(@"k1 = %@",k1);
    
    
    NSString *k2 = nil;
    LWUpDefineFunction(@"tttk2",k2)
    NSLog(@"k2 = %@",k2);
    
    /**
    NSString *name = @"Lnm";
    NSLog(@"%@",[self up:name]);
    */
    
}

PS:加一个东西，防止以往

- (BOOL)isIncludeSpecialCharact{
    //提示 标签不能输入特殊字符
    NSString *SpecialStr =@"^[A-Za-z0-9\\u4e00-\u9fa5]+$";
    NSPredicate* emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", SpecialStr];
    if (![emailTest evaluateWithObject:self]) {
        return YES;
    }
    return NO;
}