iOS正则表达式判断是否输入的为全数字、全字母或全汉字

使用调用函数

if([self deptNumInputShouldNumber]) 

NSLog(@"输入的不是全数字呢");

//结果:输入的不是全数字呢

判断输入的是否为全汉字

- (BOOL) deptNameInputShouldChinese

{

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

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

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

return YES;

}

return NO;

}

判断输入的是否为全数字

- (BOOL) deptNumInputShouldNumber

{

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

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

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

return YES;

}

return NO;

}

判断输入的是否为全字母

- (BOOL) deptPassInputShouldAlpha

{

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

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

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

return YES;

}

return NO;

}