时间:2021-07-01 10:21:17 帮助过:6人阅读
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;
- }
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