通过vite创建vue3项目，具体查看vite官网，安装依赖，引入element组件，操作查看elementPlus
components下创建TodoList组件
js
<template>
<div class="todo-list">
<h1>Todo List</h1>
<p class="subtit">The completion of every small goal is a step towards success.</p>
<div class="list-box">
<div class="add-btn-box">
<button
class="add-btn"
@click="dialogVisible=true"
>+添加任务 </button>
</div>
<div
class="list"
v-if="list.length"
>
<template
v-for="(item) in list"
:key="item.id"
>
<TodoItem
:data="item"
@change="handleChange"
@delete="handleDelete"
/>
</template>
</div>
<div v-else>
<el-empty description="暂无任务" />
</div>
</div>
<p class="statistics">已完成 {{finishedCount}} 项任务，还有 {{todoCount}} 项待完成</p>
<TodoForm
v-model:visible="dialogVisible"
@confirm="handleAdd"
/>
</div>
</template>
<script setup lang="ts">
import { ref, computed } from 'vue'
import TodoItem from './TodoItem.vue'
import TodoForm from './TodoForm.vue'
const dialogVisible = ref(false)
interface Item {
title: string
finished: boolean
id: string
}
const list = ref<Item[]>([])
const getRandomRequestId = (n: number) => {
let rdmNum = ''
for (let i = 0; i < n; i++) {
rdmNum += Math.floor(Math.random() * 10) // [0,10)的整数
}
return rdmNum
}
const finishedCount = computed(() => {
return list.value.filter((item: Item) => item.finished).length
})
const todoCount = computed(() => {
return list.value.length - finishedCount.value
})
const handleAdd = (obj: Item) => {
list.value.push({ id: getRandomRequestId(3), ...obj })
}
const handleChange = (id: string, finished: booelan) => {
list.value.forEach((item: Item) => {
if (item.id === id) {
item.finished = finished
}
})
}
const handleDelete = (id: string) => {
list.value = list.value.filter((item: Item) => item.id !== id)
}
</script>
<style scoped>
.todo-list {
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
}
* {
font-style: normal;
text-transform: none;
font-family: Roboto, Roboto;
}
h1 {
font-weight: 700;
font-size: 30px;
color: #111827;
line-height: 36px;
text-align: center;
}
.subtit {
font-weight: 400;
font-size: 16px;
color: #4b5563;
text-align: center;
}
.list-box {
width: 800px;
height: 570px;
padding: 20px;
margin: 50px auto;
box-sizing: border-box;
background: #f9fafb rgba(0, 0, 0, 0.001);
box-shadow: 0px 10px 15px 13px rgba(0, 0, 0, 0.1), 0px 4px 6px -4px rgba(0, 0, 0, 0.1);
border-radius: 12px 12px 12px 12px;
}
.add-btn-box {
margin: 16px 0;
text-align: right;
}
.add-btn {
width: 134px;
height: 50px;
background: #4f46e5;
border-radius: 4px 4px 4px 4px;
color: #fff;
font-size: 16px;
font-weight: 500;
border: none;
cursor: pointer;
}
.statistics {
font-weight: 400;
font-size: 16px;
color: #6b7280;
}
</style>创建TodoItem组件
js
<template>
<div class="todo-item">
<el-checkbox
v-model="currentData.finished"
size="large"
@change="handleChange"
>
<span :class="['title',{finished: currentData.finished}]">{{currentData.title}}</span>
</el-checkbox>
<el-icon @click="handleDelete">
<Delete />
</el-icon>
</div>
</template>
<script setup lang="ts">
import { ref } from 'vue'
const { data } = defineProps({
data: {
type: Object,
default: () => {},
},
})
const emit = defineEmits(['change', 'delete'])
const currentData = ref(data)
const handleDelete = () => {
emit('delete', currentData.value.id)
}
const handleChange = (value: boolean) => {
emit('change', { id: currentData.value.id, finished: value })
}
</script>
<style scoped>
.todo-item {
display: flex;
justify-content: space-between;
align-items: center;
width: 736px;
height: 72px;
padding: 24px 16px;
margin-bottom: 12px;
background: #f9fafb;
border-radius: 12px 12px 12px 12px;
}
.title {
font-weight: 400;
font-size: 16px;
color: #4b5563;
line-height: 24px;
}
.finished {
color: #9ca3af;
text-decoration: line-through;
}
</style>创建TodoForm组件
js
<template>
<div class="todo-form">
<el-dialog
v-model="localVisible"
title="Tips"
width="500"
:before-close="handleClose"
>
<el-form
ref="formRef"
:inline="true"
:model="form"
class="demo-form-inline"
>
<el-form-item
label="任务名称"
prop="title"
:rules="[
{
required: true,
message: 'Please input title',
trigger: 'blur',
}
]"
>
<el-input
v-model="form.title"
placeholder="请输入代办事项"
clearable
/>
</el-form-item>
</el-form>
<template #footer>
<div class="dialog-footer">
<el-button @click="handleClose">Cancel</el-button>
<el-button
type="primary"
@click="handleConfirm(formRef)"
>
Confirm
</el-button>
</div>
</template>
</el-dialog>
</div>
</template>
<script setup lang="ts">
import { ref, computed, reactive } from 'vue'
import type { FormInstance } from 'element-plus'
const props = defineProps({
visible: {
type: Boolean,
default: false,
},
})
const formRef = ref<FormInstance>()
const emit = defineEmits(['update:visible', 'confirm'])
const form = reactive({
title: '',
finished: false,
})
const localVisible = computed({
get() {
return props.visible
},
set(value) {
emit('update:visible', value)
},
})
const handleClose = () => {
emit('update:visible', false)
}
const handleConfirm = (formEl: FromInstance | undefined) => {
console.log(formEl)
if (!formEl) return
formEl.validate((valid) => {
console.log(valid, form, 'valid')
if (valid) {
emit('confirm', form)
form.title = ''
handleClose()
}
})
}
</script>
<style scoped>
</style>在App.vue中
js
<script setup lang="ts">
import TodoList from './components/todo/TodoList.vue'
</script>
<template>
<div class="app">
<TodoList />
</div>
<RouterView />
</template>main.ts
js
import './assets/main.css'
import { createApp } from 'vue'
import { createPinia } from 'pinia'
import ElementPlus from 'element-plus'
import 'element-plus/dist/index.css'
import * as ElementPlusIconsVue from '@element-plus/icons-vue'
import App from './App.vue'
import router from './router'
const app = createApp(App)
app.use(createPinia())
app.use(router)
app.use(ElementPlus)
for (const [key, component] of Object.entries(ElementPlusIconsVue)) {
app.component(key, component)
}
app.mount('#app')