vue

陈奕帆2014
2025-08-10 21:04:46
发布于：广东
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<script setup>
import { ref, computed } from 'vue'

let id = 0

const newTodo = ref('')
const hideCompleted = ref(false)
const todos = ref([])

const filteredTodos = computed(() => {
  return hideCompleted.value
    ? todos.value.filter((t) => !t.done)
    : todos.value
})

function addTodo() {
  todos.value.push({ id: id++, text: newTodo.value, done: false })
  newTodo.value = ''
}

function removeTodo(todo) {
  todos.value = todos.value.filter((t) => t !== todo)
}
</script>

<template>
  <div class="box">
    <form @submit.prevent="addTodo">
      <input v-model="newTodo" required placeholder="new todo" class="box3" >
      <button class="box1">确定</button>
    </form>
    <TransitionGroup tag="ul" name="fade" class="container">
      <li v-for="todo in filteredTodos" :key="todo.id" class="box4">
        <span class="box5"> //</span>
        <span :class="{ done: todo.done }" class="box6">{{ todo.text }}</span>
        
        <input type="checkbox" v-model="todo.done"  >
        <button @click="removeTodo(todo)" class="box2">X</button>
      </li>
    </TransitionGroup>
    <button @click="hideCompleted = !hideCompleted" >
      {{ hideCompleted ? 'Show all' : 'Hide completed' }}
    </button>
  </div>
  
</template>

<style>
  .box6{
    display: inline-flexbox;
  }
  .container {
    position: relative;
    padding: 0;
    list-style-type: none;
    
  }
  .fade-move,
  .fade-enter-active,
  .fade-leave-active {
    transition: all 0.3s cubic-bezier(0.55, 0, 0.1, 1);
    background-color: #f0f0f1;
  }

  .fade-enter-from,
  .fade-leave-to {
    opacity: 0;
    transform: scaleY(0.01) translate(30px, 0);
    background-color: #f0f0f1;
  }


  .fade-leave-active {
    position: absolute;
  }
  .box {

  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
  background-color: #f0f0f1;
  }

  .box1{
    color: white;
    height: 25px;
  	background: linear-gradient(135deg, #669ee3 0%,#667ee1 30%, #764bf6 100%);
    border-radius: 0px 5px 5px 0px;
  }

  
  .box2{
    color: white;
  	background: red;
    width:24px;
    height: 20px;
    display:flex-end;
  }
  .box3{
    border-radius: 5px 0px 0px 5px;
    width:80%;
    height: 20px;
  }
  .box4{
    margin-bottom: 15px;
    background: white;
    width:100%;
    height: 30px;
    border-radius: 5px;
    display:flex-end;
  }
  .box5{
    color:white;
  }
 .done {
  color:red;
  text-decoration: line-through;
}
</style>
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