-(void)viewDidLoad { self.specialStringArray = [@[] mutableCopy]; NSString * string = @"~,¥,#,&,*,<,>,《,》,(,),[,],{,},【,】,^,@,/,£,¤,,|,§,¨,「,」,『,』,¢,¬, ̄,(,),——,+,|,$,_,€,¥"; self.specialStringArray = [string componentsSeparatedByString:@","]; }
//在須要的地方調用該方法 -(void)submit { NSString * intriduction = self.textField.text; for (NSInteger i = 0; i < self.specialStringArray.count; i ++) { //判斷字符串中是否含有特殊符號 if ([intriduction rangeOfString:self.specialStringArray[i]].location != NSNotFound) { [MyUtil showTipText:@"請不要輸入特殊符號" completion:^{ [self.textVew becomeFirstResponder]; }]; return; } } }