- (void)textFileChange:(NSNotification *)notification

{

UITextField *textField = notification.object;

if (textField.tag == 1024) {

UITextRange *selectedRange = [textField markedTextRange];

//獲取高亮部分

UITextPosition *position = [textField positionFromPosition:selectedRange.start offset:0];

// 沒有高亮選擇的字，說明不是拼音輸入

if (!position) {

NSString *upperCaseString = [textField.text uppercaseString];

textField.text = upperCaseString;

} else {// 有高亮選擇的字符串，不做處理

}

}

}