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@@ -117,7 +117,7 @@
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_accountTF.textColor = [UIColor blackColor];
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_accountTF.font = [UIFont systemFontOfSize:14];
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_accountTF.delegate = self;
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- _accountTF.keyboardType = UIKeyboardTypeNamePhonePad;
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+ _accountTF.keyboardType = UIKeyboardTypeASCIICapable;//UIKeyboardTypeNamePhonePad;
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_accountTF.rightView = scanBut;
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_accountTF.rightViewMode = UITextFieldViewModeAlways;
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[bgView addSubview:_accountTF];
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@@ -264,12 +264,21 @@
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#pragma mark - UITextFieldDelegate Methods
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- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
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- // 在这里处理文本输入事件
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- //NSString *currentText = textField.text;
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- //NSString *updatedText = [currentText stringByReplacingCharactersInRange:range withString:string];
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+ // 允许删除操作
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+ if (string.length == 0) {
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+ return YES;
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+ }
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+
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+ // 定义允许输入的字符集
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+ NSCharacterSet *allowedCharacters = [NSCharacterSet alphanumericCharacterSet];
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- // 打印更新后的文本
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- //NSLog(@"Updated Text: %@", updatedText);
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+ // 检查输入的字符是否在允许的字符集中
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+ for (NSInteger i = 0; i < string.length; i++) {
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+ unichar character = [string characterAtIndex:i];
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+ if (![allowedCharacters characterIsMember:character]) {
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+ return NO;
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+ }
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+ }
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[self checkLoginButCanClickFun];
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return YES;
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huangxiaodong