vue3实现一个todo-list

旧城等待， 2022-09-06 14:23 154阅读 0赞

> 实现方式不是最优,主要是为了学习vue3的一些新语法以及属性,各位大佬勿喷~

### 功能介绍 ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1l1U2hpWXVl_size_16_color_FFFFFF_t_70]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1l1U2hpWXVl_size_16_color_FFFFFF_t_70 1]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1l1U2hpWXVl_size_16_color_FFFFFF_t_70 2]

### 项目的搭建可以参考这篇文章 ###

[vue3.x+vite+element-ui+vue-router+vuex+axios搭建项目][vue3.x_vite_element-ui_vue-router_vuex_axios]

### 相关代码 ###

`index.vue`

<template>
      <div class="todo-list">
        <el-card class="box-card">
          <template #header>
            <div class="card-header">
              <span>工作计划</span>
              <el-button
                class="button"
                type="primary"
                icon="el-icon-circle-plus"
                circle
                @click="handleClickTodo"
              ></el-button>
            </div>
          </template>
    
          <template v-if="list.length > 0">
            <todo-item
              v-for="(val, index) in list"
              :key="index"
              :info="val"
            ></todo-item>
          </template>
    
          <el-empty v-else description="还没有待办的事项~"></el-empty>
        </el-card>
    
        <add-action v-model:visible="visible"></add-action>
      </div>
    </template>
    
    <script>
    import AddAction from "./AddTodo.vue";
    import TodoItem from "./Item.vue";
    import {  reactive, toRefs, provide } from "vue";
    export default { 
      name: "todo-list",
      components: {  AddAction, TodoItem },
      setup() { 
        const state = reactive({ 
          visible: false,
          list: [
            { 
              title: "1.学习vue3.0",
              time: "2021-08-20",
              desc: "1.ppppppppppppp",
              status: false,
            },
          ],
        });
    
        const addTodo = (data) => { 
          state.list.push(data);
        };
    
        const delTodo = (title) => { 
          state.list = state.list.filter((val) => val.title !== title);
        };
    
        const handleClickTodo = () => { 
          state.visible = true;
        };
    
        provide("addTodo", addTodo);
        provide("delTodo", delTodo);
    
        return { 
          handleClickTodo,
          ...toRefs(state),
        };
      },
    };
    </script>
    
    <style>
    .todo-list { 
      padding: 100px;
    }
    
    .card-header { 
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    
    .text { 
      font-size: 14px;
    }
    
    .item { 
      margin-bottom: 18px;
    }
    
    .box-card { 
      width: 480px;
    }
    </style>

`AddTodo.vue`

<template>
      <el-dialog
        title="新增待办计划"
        v-model="visible"
        width="600px"
        @close="handleClose"
      >
        <el-form
          style="width: 430px"
          :model="form"
          :rules="rules"
          label-width="120px"
          ref="formRef"
        >
          <el-form-item label="计划名称" prop="title">
            <el-input
              v-model="form.title"
              placeholder="请输入待办计划名称"
            ></el-input>
          </el-form-item>
          <el-form-item label="计划完成时间" prop="time">
            <el-date-picker value-format="YYYY/MM/DD" style="width: 100%" v-model="form.time" type="date" placeholder="请选择计划完成时间">
            </el-date-picker>
          </el-form-item>
          <el-form-item label="计划详细描述" prop="desc">
            <el-input
              type="textarea"
              :rows="6"
              v-model="form.desc"
              placeholder="请输入详细待办计划"
            ></el-input>
          </el-form-item>
        </el-form>
        <template #footer>
          <span class="dialog-footer">
            <el-button @click="visible = false">取 消</el-button>
            <el-button type="primary" @click="handleConfirm">确 定</el-button>
          </span>
        </template>
      </el-dialog>
    </template>
    
    <script>
    import {  reactive, toRefs, ref, inject } from "vue";
    export default { 
      name: "add-todo",
      props: { 
        visible: { 
          type: Boolean,
          default: false,
        },
      },
      setup(props, { emit }) { 
        const formRef = ref(null)
        const addTodo = inject('addTodo')
        const state = reactive({ 
          form: { 
            title: "",
            desc: "",
            time: "",
            status: false
          },
          rules: { 
            title: [
              {  required: true, message: '请输入待办计划名称', trigger: ['blur']}
            ],
            time: [
              {  required: true, message: '请选择待办计划时间', trigger: ['change']}
            ],
            desc: [
              {  required: true, message: '请输入详细待办计划', trigger: ['blur']}
            ]
          },
        });
    
        const handleClose = () => { 
          emit("update:visible", false);
          formRef.value.clearValidate()
          formRef.value.resetFields()
        };
    
        const handleConfirm = () => { 
          formRef.value.validate(valid => { 
            if (valid) { 
              addTodo(JSON.parse(JSON.stringify(state.form)))
              handleClose()
            }
          })
        }
    
        return { 
          formRef,
          ...toRefs(state),
          handleClose,
          handleConfirm
        };
      },
    };
    </script>

`Item.vue`

<template>
      <div class="todo-item">
        <div class="titme-box">
          <el-checkbox v-model="info.status" @click="change"></el-checkbox>
          <h3 :class="info.status ? 'success' : ''">{ {  info.title }}</h3>
        </div>
    
        <div class="del">
          <p class="time" :class="info.status ? 'success' : ''">{ {  info.time }}</p>
          <el-button
            type="danger"
            icon="el-icon-delete"
            circle
            size="mini"
            @click="handleDelTodo"
          ></el-button>
        </div>
      </div>
    </template>
    
    <script>
    import {  inject } from "vue";
    export default { 
      name: "todo-item",
      props: { 
        info: { 
          type: Object,
          default: () => ({ }),
        },
      },
      setup(props) { 
        const delTodo = inject("delTodo");
        const handleDelTodo = () => { 
          delTodo(props.info.title);
        };
    
        return { 
          handleDelTodo,
        };
      },
    };
    </script>
    
    <style lang="scss">
    .todo-item { 
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid rgb(229, 226, 226);
      height: 45px;
      line-height: 45px;
      .success { 
        text-decoration: line-through;
      }
      .titme-box { 
        display: flex;
        align-items: center;
        h3 { 
          padding-left: 12px;
          font-size: 16px;
        }
      }
    
      .del { 
        display: flex;
        align-items: center;
        .time { 
          width: 100px;
          font-size: 14px;
        }
      }
    }
    </style>

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1l1U2hpWXVl_size_16_color_FFFFFF_t_70 3]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1l1U2hpWXVl_size_16_color_FFFFFF_t_70]: /images/20220829/a51ce7aa8d024a939705ce14088fbafb.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1l1U2hpWXVl_size_16_color_FFFFFF_t_70 1]: /images/20220829/67029ed30a2d4dc688c55daade5fec97.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1l1U2hpWXVl_size_16_color_FFFFFF_t_70 2]: /images/20220829/4152fc30ee964642866128b3ff64ed51.png
[vue3.x_vite_element-ui_vue-router_vuex_axios]: https://blog.csdn.net/YuShiYue/article/details/119786036?spm=1001.2014.3001.5501
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1l1U2hpWXVl_size_16_color_FFFFFF_t_70 3]: /images/20220829/85338bf3ec694ba092d903510c208841.png