基于react-antd可编辑和拖拽的tree，类似elem

This project was bootstrapped with Create React App. 主要使用react+antd

In the project directory, you can run:

Runs the app in the development mode.
Open http://localhost:3000 to view it in the browser.

The page will reload if you make edits.
You will also see any lint errors in the console.

Builds the app for production to the build folder.
It correctly bundles React in production mode and optimizes the build for the best performance.

else if ( (info.dropToGap && info.dropPosition == -1 && dropKey == '0-1' && dropPosition == -1) || (!info.dropToGap && info.dropPosition == 0 && dropKey == '0-1' && dropPosition == 0) // (info.dropToGap && info.dropPosition == -1 && dropPosition == -1) || // (!info.dropToGap && info.dropPosition == 0 && dropPosition == 0) ) { //不允许拖到根节点外部 loop(data, dropKey, item => { item.children = item.children || []; // where to insert 示例添加到头部，可以是随意位置 item.children.unshift(dragObj); }); }

循环条件需要进一步优化