golang roundtrip 代码
文件路径：/src/net/http/roundtrip.go
/ Copyright 2018 The Go Authors. All rights reserved.
/ Use of this source code is governed by a BSD-style
/ license that can be found in the LICENSE file.
/go:build !js || !wasm
package http
/ RoundTrip implements the RoundTripper interface.
/
/ For higher-level HTTP client support (such as handling of cookies
/ and redirects), see Get, Post, and the Client type.
/
/ Like the RoundTripper interface, the error types returned
/ by RoundTrip are unspecified.
func (t *Transport) RoundTrip(req *Request) (*Response, error) {
return t.roundTrip(req)
}