HTML，JavaScript和ERR_FILE_NOT_FOUND错误-Java 学习之路

我有一个带有javascript代码的简单html页面 .

HTML

<!doctype html>
<html>
   <head>
      <meta charset="utf-8" />
      <title>Sink The Battle Ship</title>
   </head>
   <body>
      <h1>Battleship</h1>
      <script src="battleship.js"></script>
   </body>
</html>

JavaScript

var location = Math.floor(Math.random() * 5);
var numberOfGuesses = 0;
var isSunk = false;
var guess;
var guess = prompt("Ready, aim, fire! (enter a number from 0-6):");
var guessedLocation = parseInt(guess);
console.log(guess);
console.log(guessedLocation);

每次我在浏览器中启动html时，都会显示提示，当我输入一个值时，它会给出一个错误“ERR_FILE_NOT_FOUND” . 看起来浏览器正在尝试使用我输入的值重定向到页面 . 知道这里出了什么问题吗？我尝试在不同的浏览器中打开html但仍然没有运气 .

1 回答

问题是您正在重新定义一个名为location的全局变量 .

当你声明一个这样的变量时

var location = 1;

这样做是一样的

window.location = 1;

位置是一个浏览器变量，用于定义用户所在的页面（位置） .

你可以做两件事，

1 - 将您的变量位置重命名为：$ location，location_2，my_location

var myLocation = Math.floor(Math.random() * 5);

2 - 创建本地范围

(function(){
    var location = Math.floor(Math.random() * 5);
    var numberOfGuesses = 0;
    var isSunk = false;
    var guess = prompt("Ready, aim, fire! (enter a number from 0-6):");
    var guessedLocation = parseInt(guess);
    console.log(guess);
    console.log(guessedLocation);
})()

另外，停止重新声明变量guess，只对每个变量名使用ONE'var'

(function(){
  var location = Math.floor(Math.random() * 5);
  var numberOfGuesses = 0;
  var isSunk = false;
  var guess;
  var guess = prompt("Ready, aim, fire! (enter a number from 0-6):");
  var guessedLocation = parseInt(guess);
  console.log(location);
  console.log(guessedLocation);
  guessedLocation == location ? console.log('you sank me!') : console.log('ha! missed...')
})();

<!doctype html>
<html>
   <head>
      <meta charset="utf-8" />
      <title>Sink The Battle Ship</title>
   </head>
   <body>
      <h1>Battleship</h1>
      <script src="battleship.js"></script>
   </body>
</html>

回复于 2024-05-02T11:36:56+08:00

HTML，JavaScript和ERR_FILE_NOT_FOUND错误

1 回答

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