我嘗試使用 Golang 構(gòu)建一個(gè)簡(jiǎn)單的程序，這里是：package mainimport ( "net/http" "net/http/httputil" "log")func main(){ proxy := http.NewSingleHostReverseProxy( &http.URL{Scheme:"http",Host:"www.google.com",Path:"/"}) err := http.ListenAndServe(":8080", proxy) if err != nil { log.Fatal("ListenAndServe: ", err.String()) }}建造：go build myprogram.go輸出：command-line-arguments./myprogram.go:5: imported and not used: "net/http/httputil"./myprogram.go:11: undefined: http.NewSingleHostReverseProxy./myprogram.go:11: undefined: http.URL./myprogram.go:15: err.String undefined (type error has no field or method String)我注意到 http.NewSingleHostReverseProxy 在“net/http/httputil”包中，為什么我會(huì)看到這樣的錯(cuò)誤？也許我需要一個(gè)特定的命令來(lái)正確構(gòu)建它？編輯 后記，這是新的工作代碼：package mainimport ( "net/http" "net/http/httputil" "net/url" "log")func main(){ proxy := httputil.NewSingleHostReverseProxy( &url.URL{Scheme:"http",Host:"www.google.com",Path:"/"}) err := http.ListenAndServe(":8080", proxy) if err != nil { log.Fatal("ListenAndServe: ", err) }}
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