關(guān)于我遇到的問題，我只是有一個足夠簡單的問題。我試圖設置一個字符串值，"0"如果一個 webelement 不存在，否則字符串是 webelement 值（使用getText）。但是，我似乎無法在if 和 else語句之外使用這些值。我該怎么做呢？這是我的代碼String players_in_game = null;public void join_game_user_increases_register() throws Exception {    WebDriverWait wait = new WebDriverWait(Drivers.getDriver(), 10);    wait.until(ExpectedConditions.visibilityOf(countdownLabel));    if (!num_of_players_in_game.isDisplayed()) {        String players_in_game = "0";    } else {        String players_in_game = num_of_players_in_game.getText();    }    System.out.println(players_in_game);    int first_num = Integer.parseInt(players_in_game);