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IOS正則表達(dá)式判斷輸入類(lèi)型(整理)

更新時(shí)間：2017年01月04日 11:30:57 投稿：mrr

在開(kāi)發(fā)過(guò)程中，有時(shí)需要對(duì)用戶輸入的類(lèi)型做判斷，最常見(jiàn)是在注冊(cè)頁(yè)面即用戶名和密碼。接下來(lái)通過(guò)本文給大家分享IOS正則表達(dá)式判斷輸入類(lèi)型，一起學(xué)習(xí)吧

在開(kāi)發(fā)過(guò)程中，有時(shí)需要對(duì)用戶輸入的類(lèi)型做判斷，最常見(jiàn)是在注冊(cè)頁(yè)面即用戶名和密碼，代碼整理如下：

只能為中文

-(BOOL)onlyInputChineseCharacters:(NSString*)string{
 NSString *zhString = @"[\u4e00-\u9fa5]+";
 NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",zhString];
 BOOL inputString = [predicate evaluateWithObject:string];
 return inputString;
}

只能為數(shù)字

- (BOOL)onlyInputTheNumber:(NSString*)string{
 NSString *numString =@"[0-9]*";
 NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",numString];
 BOOL inputString = [predicate evaluateWithObject:string];
 return inputString;
}

只能為小寫(xiě)

- (BOOL)onlyInputLowercaseLetter:(NSString*)string{
 NSString *regex =@"[a-z]*";
 NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
 BOOL inputString = [predicate evaluateWithObject:string];
 return inputString;
}

*只能為大寫(xiě)

- (BOOL)onlyInputACapital:(NSString*)string{
 NSString *regex =@"[A-Z]*";
 NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
 BOOL inputString = [predicate evaluateWithObject:string];
 return inputString;
}

允許大小寫(xiě)

- (BOOL)InputCapitalAndLowercaseLetter:(NSString*)string{
 NSString *regex =@"[a-zA-Z]*";
 NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
 BOOL inputString = [predicate evaluateWithObject:string];
 return inputString;
}

允許含大小寫(xiě)或數(shù)字(不限字?jǐn)?shù))

- (BOOL)inputLettersOrNumbers:(NSString*)string{
 NSString *regex =@"[a-zA-Z0-9]*";
 NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
 BOOL inputString = [predicate evaluateWithObject:string];
 return inputString;
}

允許含大小寫(xiě)或數(shù)字(限字?jǐn)?shù))

-(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;
}

允許漢字或數(shù)字(不限字?jǐn)?shù))

- (BOOL)inputChineseOrNumbers:(NSString*)string{
 NSString *regex =@"[\u4e00-\u9fa5]+[0-9]*";
 NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
 BOOL inputString = [predicate evaluateWithObject:string];
 return inputString;
}

允許漢字或數(shù)字(限字?jǐn)?shù))

- (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;
}

允許漢字，大小寫(xiě)或數(shù)字(不限字?jǐn)?shù))

- (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;
}

允許漢字，大小寫(xiě)或數(shù)字(限字?jǐn)?shù))

- (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;
}

以上所述是小編給大家介紹的IOS正則表達(dá)式判斷輸入類(lèi)型(整理)，希望對(duì)大家有所幫助，如果大家有任何疑問(wèn)請(qǐng)給我留言，小編會(huì)及時(shí)回復(fù)大家的。在此也非常感謝大家對(duì)腳本之家網(wǎng)站的支持！

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