无法获得输出

Question

我正在尝试在 JavaScript 中编写代码以获得与此 link http://www.99-bottles-of-beer.net/lyrics.html 中所示相同的输出我想我需要更多地了解 while 循环。我尝试多次更改代码，例如 10 次，现在我很沮丧。

我的代码：-

function beer() {
  var count = 99;
  while (count >= 0) {
    var output = count + " bottles of beer on the wall, " + count +
    " bottles of beer. Take one down and pass it around, " + (count-1) + " bottles of beer on the wall.";
  }
  count--;
  console.log(output);
}
beer();

Answer 1

确保您处理要循环的内容。如果你想重复输出一些东西，在循环体内保留相应的代码。还要确保循环条件是可修改的，而循环是运行。在某个时候循环应该终止。我在这里保留了一个运行版本的代码以供参考。 https://jsfiddle.net/a2qdk9t8/

function beer() {
  var count = 99;
  while (count >= 0) {
    var output = count + " bottles of beer on the wall, " + count +
    " bottles of beer. Take one down and pass it around, " + (count-1) + " bottles of beer on the wall.";
      count--;
  console.log(output);

  }
}
beer();

无法获得输出

Unable to get output

javascript

while-loop