AngularJS 待办事项 App

下面是一个完整的 AngularJS 示例 App ，实现一个简单的待办事项清单（To-Do List） ，你可以直接复制粘贴到 .html 文件中运行：

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✅ 示例：AngularJS 待办事项 App

<!DOCTYPE html>
<html ng-app="todoApp">
<head>
  <meta charset="UTF-8">
  <title>AngularJS ToDo App</title>
  <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.8.2/angular.min.js"></script>
  <style>
    body { font-family: Arial; padding: 20px; }
    ul { list-style-type: none; padding: 0; }
    li { margin: 5px 0; }
    .completed { text-decoration: line-through; color: gray; }
  </style>
</head>
<body ng-controller="TodoController">

  <h1>我的待办事项</h1>

  <input type="text" ng-model="newTask" placeholder="添加新任务" />
  <button ng-click="addTask()">添加</button>

  <ul>
    <li ng-repeat="task in tasks">
      <input type="checkbox" ng-model="task.done"> 
      <span ng-class="{completed: task.done}">{{ task.text }}</span>
      <button ng-click="removeTask($index)">删除</button>
    </li>
  </ul>

  <p>剩余任务：{{ remaining() }}</p>

  <script>
    var app = angular.module('todoApp', []);
    app.controller('TodoController', function($scope) {
      $scope.tasks = [
        { text: '学习 AngularJS', done: false },
        { text: '做一个示例 App', done: true }
      ];

      $scope.addTask = function() {
        if ($scope.newTask) {
          $scope.tasks.push({ text: $scope.newTask, done: false });
          $scope.newTask = '';
        }
      };

      $scope.removeTask = function(index) {
        $scope.tasks.splice(index, 1);
      };

      $scope.remaining = function() {
        var count = 0;
        angular.forEach($scope.tasks, function(task) {
          if (!task.done) count++;
        });
        return count;
      };
    });
  </script>

</body>
</html>

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🧠 你可以学到：

功能	AngularJS 语法
数据绑定	{``{ task.text }}
控制器	ng-controller="TodoController"
模型绑定	ng-model="newTask"
列表渲染	ng-repeat="task in tasks"
条件样式	ng-class="{completed: task.done}"
事件处理	ng-click="addTask()"

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运行结果如下：