node 文件下载到本地

 

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//导入 const path = require('path'); const fs = require('fs');    function  downLoadTemplate() {         try {             const _path = path.join(__dirname, '../static/template.doc')             const stats = fs.statSync(_path)             if (stats.isFile()) {                 ctx.set({                     'Content-Type': 'application/octet-stream',                     'Content-Disposition': 'attachment; filename=template.doc',                     'Content-Length': stats.size                 });                fs.createReadStream(_path);             } else { 　　　　　console.log("下载模版遇到错误")             }         } catch (ex) {            console.log("下载模版遇到错误")         }     }