node.js - 为什么打data事件会触发多次直到服务器响应中的内容读完？

Question

var data = "";
res.on('data', function (chunk) {
data += chunk;
}) .on("end", function () {

});
如果我不写这个事件监听，是不是nodejs内部还是会emit这个data事件多次？不是很理解这个事件的调用过程求科普

Answer 1

Because it needs to set a fixed memory length to receive messages, it does not receive them all at once, but needs to be entered multiple times