现在可以使用timeoutoption和相应的request事件：
// set the desired timeout in options
const options = {
//...
timeout: 3000,
};
// create a request
const request = http.request(options, response => {
// your callback here
});
// use its "timeout" event to abort the request
request.on('timeout', () => {
request.abort();
});
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