iOS 正則表達式判斷UITextField是否爲全漢字,全字母,全數字,數字和字母

判斷全漢字(這個問題苦惱了我好久,如今很方便,幾行代碼就搞定):lua

    if ([self deptNameInputShouldChinese]) {spa

        [DemonAlertHelper showToastWithMessage:@"只能是中文"];3d

        return;orm

    }input

調用這個方法就可it

#pragma mark--ast

#pragma mark 輸入中文方法

- (BOOL) deptNameInputShouldChinesemargin

{top

    NSString *regex = @"[\u4e00-\u9fa5]+";

    NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];

    if (![pred evaluateWithObject:inputTextField.text]) {

        return YES;

    }

    return NO;

}


判斷全數字:

- (BOOL) deptNumInputShouldNumber

{

NSString *regex =@"[0-9]*";

    NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];

    if (![pred evaluateWithObject:inputTextField.text]) {

        return YES;

    }

return NO;

}


判斷全字母:

- (BOOL) deptPassInputShouldAlpha

{

NSString *regex =@"[a-zA-Z]*";

    NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];

    if (![pred evaluateWithObject:inputTextField.text]) {

        return YES;

    }

return NO;

}


判斷僅輸入字母或數字:

- (BOOL) deptIdInputShouldAlphaNum

{

NSString *regex =@"[a-zA-Z0-9]*";

    NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];

    if (![pred evaluateWithObject:inputTextField.text]) {

        return YES;

    }

return NO;

}

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