父组件向子组件传递getList方法：provide/inject

父组件：

引入、注册、使用子组件

import Edit from './edit'
components: { Edit },
<edit ref="edit"></edit>

代码如下:

let that
export default {
  name: 'index',
  components: { Pagination, Edit },
  data() {
    return {
      
  },
  created(){
    this.getList()
    that = this
  },
  methods: {
    getList() {
      this.listLoading = true
      user.getList(this.listQuery).then(response => {if (response.success) {
          this.list = response.data
          this.total = response.total
        } else {
          this.$message.error('用户信息获取失败')
        }
      }).catch(error => {
        console.error(error)
      }).finally(() => {
        this.listLoading = false
      })
    },
    returnMessage() {
      this.getList()
    },
  },
  provide() {
    return {
      returnMessage: this.returnMessage  // 注意：this.returnMessage后不能加括号,否则报错
    }
  }
}

子组件：

export default {
        name: '',
        inject: ['returnMessage'],
        data() {return {
                
            }
        },
        methods: {
            saveInfo() {
                this.$refs['form'].validate((valid) => {
                    if (valid) {
                        this.saveLoading = true
                        if (this.dialogStatus == 0) {
                            let data = Object.assign({},this.form)
                            user.createUser(data).then(response => {
                              console.log(response)
                                if (response.success) {
                                    this.$message.success(response.msg)
                                    this.dialogFormVisible = false
                                } else {
                                    this.$message.error(response.msg)
                                }
                            }).catch(error => {
                                this.$message.error('抱歉，添加失败')
                                console.log(error)
                            }).finally(() => {
                                this.dialogFormVisible = false
                                this.saveLoading = false
                              this.returnMessage()
                            })
                        } else {
                            this.form.password = null
                            user.updateUser(this.form).then(response => {
                              console.log(response)
                                if (response.success) {
                                    this.$message.success(response.msg)
                                    this.dialogFormVisible = false
                                  this.returnMessage()
                                } else {
                                    this.$message.error(response.msg)
                                }
                            }).catch(error => {
                                this.$message.error('抱歉，修改失败')
                                // console.log(error)
                            }).finally(() => {
                                this.dialogFormVisible = false
                                this.saveLoading = false
                            })
                        }

                    }
                })
            },

        }