ios - 如何在正则表达式中添加 ","以在 objective-c 中发送多封邮件

Question

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Answer 1

为什么不简单地使用 , 来分隔字符串并比较每个字符串是否是有效的电子邮件。

NSString *emailRegEx = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";
NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegEx];
NSArray *emails = [emailField.text componentsSeparatedByString:@","];
NSMutableArray *valiedEmails = [[NSMutableArray alloc] init];
for (NSString *email in emails) {
    if ([emailTest evaluateWithObject:email]) {
        [valiedEmails addObject: email];            
    }
}
if (valiedEmails.count > 0) {
    txtviewemailaddress.text = [valiedEmails componentsJoinedByString:@", "];
    [self serverconnectionPost];
} 
else {
    //show alert that email is not valid 
}