iOS 正则表达式判断UITextField是否为全汉字，全字母

判断全汉字（这个问题苦恼了我很久，现在很方便，几行代码就搞定）：

if([selfdeptNameInputShouldChinese]) {

[DemonAlertHelpershowToastWithMessage:@"只能是中文"];

return;

}

调用这个方法就可

#pragma mark--

#pragma mark输入中文

- (BOOL) deptNameInputShouldChinese

{

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

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

if(![predevaluateWithObject:inputTextField.text]) {

returnYES;

}

returnNO;

}

判断全数字：

- (BOOL) deptNumInputShouldNumber

{

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

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

if(![predevaluateWithObject:inputTextField.text]) {

returnYES;

}

returnNO;

}

判断全字母：

- (BOOL) deptPassInputShouldAlpha

{

NSString*regex =@"[a-zA-Z]*";

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

if(![predevaluateWithObject:inputTextField.text]) {

returnYES;

}

returnNO;

}

判断仅输入字母或数字：

- (BOOL) deptIdInputShouldAlphaNum

{

NSString*regex =@"[a-zA-Z0-9]*";

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

if(![predevaluateWithObject:inputTextField.text]) {

returnYES;

}

returnNO;

}