脚本宝典收集整理的这篇文章主要介绍了IOS正则表达式判断输入类型(整理)，脚本宝典觉得挺不错的，现在分享给大家，也给大家做个参考。
在开发过程中，有时需要对用户输入的类型做判断，最常见是在注册页面即用户名和密码，代码整理如下：
只能为中文
-(BOOL)onlyInputChineseCharacters:(NSString*)string{ NSString *zhString = @"[/u4e00-/u9fa5]+"; NSPredicate *PRedicate = [NSPredicate predicateWIThFormat:@"SELF MATCHES %@",zhString]; BOOL inputString = [predicate evaluateWithObject:string]; return inputString; } 只能为数字
- (BOOL)onlyInputTheNumber:(NSString*)string{ NSString *numString =@"[0-9]*"; NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",numString]; BOOL inputString = [predicate evaluateWithObject:string]; return inputString; } 只能为小写
- (BOOL)onlyInputLowercaseLetter:(NSString*)string{ NSString *regex =@"[a-z]*"; NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex]; BOOL inputString = [predicate evaluateWithObject:string]; return inputString; } *只能为大写
- (BOOL)onlyInputACapital:(NSString*)string{ NSString *regex =@"[A-Z]*"; NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex]; BOOL inputString = [predicate evaluateWithObject:string]; return inputString; } 允许大小写
- (BOOL)InputCapitalAndLowercaseLetter:(NSString*)string{ NSString *regex =@"[a-zA-Z]*"; NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex]; BOOL inputString = [predicate evaluateWithObject:string]; return inputString; } 允许含大小写或数字(不限字数)
- (BOOL)inputLettersOrNumbers:(NSString*)string{ NSString *regex =@"[a-zA-Z0-9]*"; NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex]; BOOL inputString = [predicate evaluateWithObject:string]; return inputString; } 允许含大小写或数字(限字数)
-(BOOL)inputNumberOrLetters:(NSString*)name { NSString *userNameRegex = @"^[A-Za-z0-9]{6,20}+$"; NSPredicate *userNamePredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",userNameRegex]; BOOL inputString = [userNamePredicate evaluateWithObject:name]; return inputString; }
允许汉字或数字(不限字数)
- (BOOL)inputChineseOrNumbers:(NSString*)string{ NSString *regex =@"[/u4e00-/u9fa5]+[0-9]*"; NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex]; BOOL inputString = [predicate evaluateWithObject:string]; return inputString; } 允许汉字或数字(限字数)
- (BOOL)inputChineseOrNumbersLimit:(NSString*)string{ NSString *regex =@"[/u4e00-/u9fa5][0-9]{6,20}+$"; NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex]; BOOL inputString = [predicate evaluateWithObject:string]; return inputString; } 允许汉字，大小写或数字(不限字数)
- (BOOL)inputChineseOrLettersAndNumbersNum:(NSString*)string{ NSString *regex =@"[/u4e00-/u9fa5]+[A-Za-z0-9]*"; NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex]; BOOL inputString = [predicate evaluateWithObject:string]; return inputString; } 允许汉字，大小写或数字(限字数)
- (BOOL)inputChineseOrLettersNumberslimit:(NSString*)string{ NSString *regex =@"[/u4e00-/u9fa5]+[A-Za-z0-9]{6,20}+$"; NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex]; BOOL inputString = [predicate evaluateWithObject:string]; return inputString; } 以上是脚本宝典为你收集整理的IOS正则表达式判断输入类型(整理)全部内容，希望文章能够帮你解决IOS正则表达式判断输入类型(整理)所遇到的问题。
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