Question

我在节点JS中有我的代码，如何执行多个.write（）命令？这段代码的输出将创建一个test.xls文件，当我打开该文件时，它只显示第一个writeStream.write，它是标题（＆＃34; Sl No＆＃34; +＆＃34; \ t＆＃34; +＆＃34;年龄＆＃34; +＆＃34; \ t＆＃34; +＆＃34;名称＆＃34; +＆＃34; \ n＆＃34;）我想要所有这些（标题，第1行， row2）一起执行并在test.xls文件上显示所有这些

＆＃13;

exports.post = function(req, res){

var writeStream = fs.createWriteStream("test.xls");
var header="Sl No"+"\t"+" Age"+"\t"+"Name"+"\n";
var row1 = "0"+"\t"+" 21"+"\t"+"Rob"+"\n";
var row2 = "1"+"\t"+" 22"+"\t"+"bob"+"\n";

writeStream.write(header);
writeStream.write(row1);
writeStream.write(row2);
writeStream.close();
	 
};

＆＃13;

Answer 1

尝试一次性写入它们是一个快速修复：

writeStream.write(header + '\n' + row1 + '\n' + row2);
writeStream.close();

使用.end vs .close因为节点是异步的。根据我的理解end等待所有可写的块完成，close终止流。

writeStream.write(header);
writeStream.write(row1);
writeStream.write(row2);
writeStream.end();

close and error events are emitted when a stream ends due to failure (e.g. stream.destroy())
end is emitted when a readable stream has no more data

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如何执行多个.write（）命令？

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