Question

我编写了 jquery 代码来分别指定英文单词列表。我使用HTML音频“on ended”事件发出下一个单词，如下面的代码所示。

$("#PlaySnd").on('ended', function(e) {
  // start:
  var crnt = $("img[src$='../Images/checked.png']");
  crnt.closest('tr').next().find('.chck').attr('src', '../Images/checked.png');
  crnt.attr('src', '../Images/Unchecked.png');
  crnt = $("img[src$='../Images/checked.png']");
  var thisword = crnt.parent().parent().children(0).children(0).html();
  if (/\s/.test(thisword)) {
    //alert('it has space');
    // here I would like to start code from the bigenning like this 
    // GoTo stat
    // because some words hase more than one word so it causes progrm stop so I need to move to the next one 
  } else {
    $("#PlaySnd").attr('src', 'https://ssl.gstatic.com/dictionary/static/sounds/oxford/' + thisword + '--_gb_1.mp3').trigger('play');
  } // end if
});

如评论中所示，我需要做一些像VBA“ GoTo ”这样的事情，以便继续执行程序并防止停止。

Answer 1

js中没有goto语句，但有一些解决方法。使用带标签虽然效果很好，但我认为：

$("#PlaySnd").on('ended', function (e) { 
   start: while(true) {
     var crnt = $("img[src$='../Images/checked.png']");
     crnt.closest('tr').next().find('.chck').attr('src', '../Images/checked.png');
     crnt.attr('src', '../Images/Unchecked.png');
     crnt = $("img[src$='../Images/checked.png']");
     var thisword = crnt.parent().parent().children(0).children(0).html();
     if (/\s/.test(thisword)) {
        //alert('it has space');
        // here I would like to start code from the bigenning like this 
        continue start
        // because some words hase more than one word so it causes progrm stop so I need to move to the next one 
     }
     else {
         $("#PlaySnd").attr('src', 'https://ssl.gstatic.com/dictionary/static/sounds/oxford/' + thisword + '--_gb_1.mp3').trigger('play');
     } // end if
     break; // break when reaching end
   } // end start labeled while
 });

如何在jquery中使用Goto语句？

1 个答案: