Belle
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Belle
1.执行： ls ${NVM_DIR}/.cache/bin/node-v12.20.0-darwin-x64/node-v12.20.0-darwin-x64.tar.xz 2.执行 brew install xz 3.执行： nvm install node版本 
```js function encode(str) { let prefix = ""; //初识节点 let num = 0; //计数器 let result = ""; //结果 for (let i = 0; i < str.length; i++) { if...
```js // number