TypeError:First argument must be file descriptor
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1、错误描述
2、错误原因
var app = require('fs');var buf = new Buffer('我爱你，编程！');app.open('you.txt','wx',function(err,fd){app.write(fd,buf,0,15,0,function(err,written,buffer){if(err)console.log("写入文件失败");elseconsole.log("写入文件成功");app.close(fd);});}); 第一个参数必须是文件描述符3、解决办法
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