废话不多说了，下面给大家介绍使用正则表达式验证用户名、密码、手机号码、身份证的写法，需要的的朋友参考下吧
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//用户名
+ (BOOL) validateUserName:(NSString *)name
{
NSString *userNameRegex = @"^[A-Za-z0-9]{3,20}+$";
NSPredicate *userNamePredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",userNameRegex];
BOOL B = [userNamePredicate evaluateWithObject:name];
return B;
}
//密码
+ (BOOL) validatePassword:(NSString *)passWord
{
NSString *passWordRegex = @"^[a-zA-Z0-9]{6,20}+$";
NSPredicate *passWordPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",passWordRegex];
return [passWordPredicate evaluateWithObject:passWord];
}
//判断手机号码格式是否正确
+ (BOOL)valiMobile:(NSString *)mobile
{
mobile = [mobile stringByReplacingOccurrencesOfString:@" " withString:@""];
if (mobile.length != 11)
{
return NO;
}else{
/**
* 移动号段正则表达式
*/
NSString *CM_NUM = @"^((13[4-9])|(147)|(15[0-2,7-9])|(178)|(18[2-4,7-8]))\\\\d{8}|(1705)\\\\d{7}$";
/**
* 联通号段正则表达式
*/
NSString *CU_NUM = @"^((13[0-2])|(145)|(15[5-6])|(176)|(18[5,6]))\\\\d{8}|(1709)\\\\d{7}$";
/**
* 电信号段正则表达式
*/
NSString *CT_NUM = @"^((133)|(153)|(177)|(18[0,1,9]))\\\\d{8}$";
NSPredicate *pred1 = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CM_NUM];
BOOL isMatch1 = [pred1 evaluateWithObject:mobile];
NSPredicate *pred2 = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CU_NUM];
BOOL isMatch2 = [pred2 evaluateWithObject:mobile];
NSPredicate *pred3 = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CT_NUM];
BOOL isMatch3 = [pred3 evaluateWithObject:mobile];
if (isMatch1 || isMatch2 || isMatch3) {
return YES;
}else{
return NO;
}
}
}
/**
* 验证身份证号码是否正确的方法
*
* @param IDNumber 传进身份证号码字符串
*
* @return 返回YES或NO表示该身份证号码是否符合国家标准
*/
+ (BOOL)isCorrect:(NSString *)IDNumber
{
NSMutableArray *IDArray = [NSMutableArray array];
// 遍历身份证字符串,存入数组中
if (IDNumber.length == 18) {
for (int i = 0; i < 18; i++) {
NSRange range = NSMakeRange(i, 1);
NSString *subString = [IDNumber substringWithRange:range];
[IDArray addObject:subString];
}
}else{
for (int i = 0; i < 15; i++) {
NSRange range = NSMakeRange(i, 1);
NSString *subString = [IDNumber substringWithRange:range];
[IDArray addObject:subString];
}
}
// 系数数组
NSArray *coefficientArray = [NSArray arrayWithObjects:@"7", @"9", @"10", @"5", @"8", @"4", @"2", @"1", @"6", @"3", @"7", @"9", @"10", @"5", @"8", @"4", @"2", nil];
// 余数数组
NSArray *remainderArray = [NSArray arrayWithObjects:@"1", @"0", @"X", @"9", @"8", @"7", @"6", @"5", @"4", @"3", @"2", nil];
// 每一位身份证号码和对应系数相乘之后相加所得的和
int sum = 0;
if (IDNumber.length == 18) {
for (int i = 0; i < 17; i++) {
int coefficient = [coefficientArray[i] intValue];
int ID = [IDArray[i] intValue];
sum += coefficient * ID;
}
}else{
for (int i = 0; i < 14; i++) {
int coefficient = [coefficientArray[i] intValue];
int ID = [IDArray[i] intValue];
sum += coefficient * ID;
}
}
// 这个和除以11的余数对应的数
NSString *str = remainderArray[(sum % 11)];
// 身份证号码最后一位
NSString *string;
if (IDNumber.length == 18) {
string = [IDNumber substringFromIndex:17];
}else{
string = [IDNumber substringFromIndex:14];
}
// 如果这个数字和身份证最后一位相同,则符合国家标准,返回YES
if ([str isEqualToString:string]) {
return YES;
} else {
return NO;
}
}
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