antd+redux重写Todo {ActionTypes}的拆

1.在store文件夹中创建一个ActionTypes.js文件
文件代码如下：
export const CHANGE_INPUT_VALUE = 'chang_input_value';
export const ADD_TODO_ITEM = 'add_todo_item';
export const DELET_TODO_ITEM = 'delet_todo-item';

2.在TodoList.js文件中引入ActionTypes.js
import { CHANGE_INPUT_VALUE , ADD_TODO_ITEM , DELET_TODO_ITEM } from './store/ActionTypes.js';
3.把TodoList之前的action里的type全部换成大写的
    handleChange (e) {
        const action = {
            type : CHANGE_INPUT_VALUE,
            value :  e.target.value
        }
        store.dispatch(action);
    }
    handleAddList() {
        const action = {
            type : ADD_TODO_ITEM
        }
        store.dispatch(action)
    }
    handleDelet (index) {
        const action = {
            type : DELET_TODO_ITEM,
            index
        }
        store.dispatch(action)
    }

4.同时也需要替换掉reducer中的type
    if(action.type === CHANGE_INPUT_VALUE) {
        const newState = JSON.parse(JSON.stringify(state));
        newState.inputValue = action.value;
        return newState; 
    }
    if(action.type === ADD_TODO_ITEM) {
        const newState = JSON.parse(JSON.stringify(state));
        newState.List.push(newState.inputValue);
        newState.inputValue='';
        return newState;
    }
    if(action.type === DELET_TODO_ITEM) {
        const newState = JSON.parse(JSON.stringify(state));
        newState.List.splice(action.index,1);
        return newState;
    }