废话不多说了,直接给大家贴实现此功能的正则表达式代码了,具体代码如下所示:
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#import <Foundation/Foundation.h> int main() { // ? == {0,1} // * == {0,无穷} // + == {1,无穷} // \d == [0-9] // \w == [A-Za-z_0-9] // * 的意思是可有可无 // [a|b|c]+ 表示三个至少出现一次或多次 //检测电话号码是否正确 NSString *tel = @ "" ; //正则表达式 NSString *regex = @ "^\\d*$" ; // NSString *regex = @"^[0-9]{3,4}-[0-9]{7,8}$"; NSPredicate *predicate = [NSPredicate predicateWithFormat:@ "SELF MATCHES%@" ,regex]; //创建需要满足上面的正则表达式的谓词 NSLog(@ "该电话号码:%d" ,[predicate evaluateWithObject:tel]); //用户名 (第一位必须是字母,6-16位,只能有字母,数字或下划线) NSString *user = @ "m54355" ; NSString *regex1 = @ "^[A-Za-z]\\w{5,15}$" ; NSPredicate *predicate1 = [NSPredicate predicateWithFormat:@ "SELF MATCHES%@" ,regex1]; // NSLog(@"该电话号码:%d",[predicate1 evaluateWithObject:user]); // //身份证 // NSString *user1 = @"610125199301300814"; // NSString *regex2 = @"^\\d{17}[\\dxX]$"; // NSPredicate *predicate2 = [NSPredicate predicateWithFormat:@"SELF MATCHES%@",regex2]; // NSLog(@"该身份证:%d",[predicate2 evaluateWithObject:user1]); //邮箱 NSString *mailbox = @ "101707383@qq.com" ; NSString *regex3 = @ "^[a-zA-Z0-9._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}$" ; NSPredicate *predicate3 = [NSPredicate predicateWithFormat:@ "SELF MATCHES%@" ,regex3]; // NSLog(@"该邮箱:%d",[predicate3 evaluateWithObject:mailbox]); //手机号 // NSString *phone = @"18709259205"; // NSString *regex4 = @"^1[3|4|5|7|8]\\d{9}$"; // NSPredicate *predicate4 = [NSPredicate predicateWithFormat:@"SELF MATCHES%@",regex4]; // NSLog(@"该手机:%d",[predicate4 evaluateWithObject:phone]); if ([predicate1 evaluateWithObject:user] == 1) { if ([predicate3 evaluateWithObject:mailbox] == 1) { NSLog(@ "登录成功" ); } } else { NSLog(@ "错误" ); } return 0; } |