TodoList Vue

<template>
  <div class="todo-app">
    <div class="title">今日事 今日毕</div>
    <div class="todo-form">
      <input v-model="str" @keydown.enter="add" type="text" class="todo-input" placeholder="请输入待办事项" />
      <button @click="add" class="todo-submit">Add todo</button>
    </div>
    <div v-for="(item, index) in todolist" :key="index" :class="[item.isCompleted ? 'completed item' : 'item']">
      <div>
        <input v-model="item.isCompleted" type="checkbox" class="checkbox" />
        <span class="name">{{ item.name }}</span>
      </div>
      <div @click="del(index)" class="del" style="color: red">del</div>
    </div>
  </div>

  <!-- 展示v-if -->

</template>

<script setup>

import { ref, watch } from 'vue';

const str = ref("");
const todolist = ref([
  {
    isCompleted: false,
    name: "吃饭"
  },
  {
    isCompleted: false,
    name: "睡觉"
  },
  {
    isCompleted: false,
    name: "打豆豆"
  }
]);

function watchTodolist(){
  localStorage.setItem("todolist", JSON.stringify(todolist.value));
}
watch(todolist, watchTodolist, { deep: true });
if(localStorage.getItem("todolist")) {
  todolist.value = JSON.parse(localStorage.getItem("todolist"));
}


function add(){
  if(str.value == "") return;
  todolist.value.push({
    isCompleted: false,
    name: str.value
  });
  str.value = "";
}

function del(index){
  todolist.value.splice(index, 1);
}

//监听键盘回车键
// window.addEventListener("keydown", function(e){
//   if(e.key == "Enter"){
//     add();
//   }
// })


</script>

<style>
body {
  background: linear-gradient(
    to right,
    rgb(113, 65, 168),
    rgba(44, 114, 251, 1)
  );
}
.todo-app {
  width: 78%;
  height: 500px;
  margin: 0px auto;
  margin-top: 70px;
  background: white;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
}
.title {
  text-align: center;
  font-size: 30px;
  font-weight: 700;
  padding: 40px 0;
}
.todo-form {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 15px;
  margin-bottom: 25px;
}
.todo-input {
  width: 60%;
  height: 52px;
  box-sizing: border-box;
  padding: 15px;
  border: 1px solid #ccc;
  border-radius: 20px 0 0 20px;
  outline: none;
}
.todo-submit {
  width: 100px;
  height: 52px;
  box-sizing: border-box;
  border: none;
  border-radius: 0 20px 20px 0;
  background: linear-gradient(
    to right,
    rgb(113, 65, 168),
    rgba(44, 114, 251, 1)
  );
  color: aliceblue;
  cursor: pointer;
}
.item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 50px;
  box-sizing: border-box;
  padding: 16px;
  width: 80%;
  margin: 10px auto;
  border-radius: 10px;
  box-shadow: rgba(149, 157, 165, 0.2) 0px 8px 20px;
}
.completed {
  text-decoration: line-through;
  opacity: 0.4;
}
</style>