ch1/ch1-05 #175

2023-01-25T06:10:52Z

giscus[bot]
bot Jan 25, 2023

ch1/ch1-05

中文版

https://gopl-zh.github.io/ch1/ch1-05.html

wlwqq · 2023-01-25T06:10:53Z

wlwqq
Jan 25, 2023 — with giscus

练习1.7，1.8，1.9

func testFetch1() {
	for _, url := range os.Args[1:] {
		if !strings.HasPrefix(url, "http://") {
			url = "http://" + url
		}

		resp, err := http.Get(url)
		if err != nil {
			fmt.Fprintf(os.Stderr, "fetch: %v\n", err)
			os.Exit(resp.StatusCode)
		}
		_, err = io.Copy(os.Stdout, resp.Body)
		resp.Body.Close()
		if err != nil {
			fmt.Fprintf(os.Stderr, "fetch: reading %s: %v\n", url, err)
			os.Exit(1)
		}
	}
}

2 replies

Sherlockfanchen Apr 15, 2023 — with giscus

package main

import (
"fmt"
"io"
"net/http"
"os"
"strings"
)

func main() {
for _, url := range os.Args[1:] {
if strings.HasPrefix(url, "http://") {
fmt.Println("so cool")
} else {
url = "http://" + url
}

	resp, err := http.Get(url)
	fmt.Println(resp.Status)
	if err != nil {
		fmt.Println(os.Stderr, "fetch: %v\n", err)
		os.Exit(1)
	}
	dst, err := os.Create("te11.txt")
	if err != nil {
		panic(err)
	}
	defer dst.Close()
	_, err = io.Copy(dst, resp.Body)
	//b, err := ioutil.ReadAll(resp.Body)
	resp.Body.Close()
	if err != nil {
		fmt.Fprintf(os.Stderr, "fetch: reading %s: %v\n", url, err)
		os.Exit(1)
	}
	//fmt.Println("%s", dst)
}

}

Sherlockfanchen Apr 15, 2023 — with giscus

resp, err := http.Get(url)
fmt.Println(resp.Status)
if err != nil {
	fmt.Println(os.Stderr, "fetch: %v\n", err)
	os.Exit(1)
}
dst, err := os.Create("te11.txt")
if err != nil {
	panic(err)
}
defer dst.Close()
_, err = io.Copy(dst, resp.Body)
//b, err := ioutil.ReadAll(resp.Body)
resp.Body.Close()
if err != nil {
	fmt.Fprintf(os.Stderr, "fetch: reading %s: %v\n", url, err)
	os.Exit(1)
}
//fmt.Println("%s", dst)

}

补充版会把状态码写入文件同时写入输入到控制台

Zengyinjun · 2023-04-16T03:16:33Z

Zengyinjun
Apr 16, 2023 — with giscus

package main

import (
	"fmt"
	"io"
	"net/http"
	"os"
	"strings"
)

func main() {
	for _, url := range os.Args[1:] {
		if !strings.HasPrefix(url, "http://") {
			url = "http://" + url
		}
		resp, err := http.Get(url)
		if err != nil {
			fmt.Fprintf(os.Stderr, "fetch: %v\n", err)
			os.Exit(1)
		}
		_, err = io.Copy(os.Stdout, resp.Body)
		resp.Body.Close()
		if err != nil {
			fmt.Fprintf(os.Stderr, "fetch: reading %s: %v\n", url, err)
			os.Exit(1)
		}
		fmt.Printf("\n%s\n", resp.Status)
	}
}

0 replies

0xJungleMonkey · 2023-05-05T15:49:45Z

0xJungleMonkey
May 5, 2023 — with giscus

package main

import (
	"fmt"
	"io"
	"log"
	"net/http"
	"os"
	"strings"
)

func main() {
	for _, url := range os.Args[1:] {
		//////exercise1.8
		if !strings.HasPrefix(url, "http://") {
			url = "http://" + url
		}
		resp, err := http.Get(url)
		if err != nil {
			fmt.Fprintf(os.Stderr, "fetch: %v\n", err)
			os.Exit(1)
		}
		//////exercise1.7 
		if _, err := io.Copy((os.Stdout), resp.Body); err != nil {
			log.Fatal(err)
		}
		//////exericise1.9 打印HTTP 协议的状态码
		fmt.Printf("\n%s\n", resp.Status)

	}
}

0 replies

Bibooo25730 · 2023-06-14T12:12:15Z

Bibooo25730
Jun 14, 2023 — with giscus

// Fetch prints the content found at a URL.
package main

import (
"fmt"
"io"
"net/http"
"os"
"strings"
)

func main() {
for _, url := range os.Args[1:] {
if !strings.HasPrefix(url, "http://") {
url = "http://" + url
}
resp, err := http.Get(url)
if err != nil {
fmt.Fprintf(os.Stderr, "fetch: %v\n", err)
os.Exit(1)
}
//b, err := ioutil.ReadAll(resp.Body)
//1.7
_, dist := io.Copy(os.Stderr, resp.Body)
if dist != nil {
fmt.Println(dist)
}
resp.Body.Close()
if err != nil {
fmt.Fprintf(os.Stderr, "fetch: reading %s: %v\n", url, err)
os.Exit(1)
}
fmt.Printf(resp.Status, dist)
}
}

0 replies

CatalinaElf · 2023-06-17T15:32:02Z

CatalinaElf
Jun 17, 2023 — with giscus

1.7、1.8、1.9

func main() {
	for _, path := range os.Args[1:] {
		if !strings.HasPrefix(path, "https://") {
			path = "https://" + path
			fmt.Printf("path的值：%s\r\n", path)
			resp, err := http.Get(path)
			if err != nil {
				_, _ = fmt.Fprintf(os.Stderr, "错误信息1：%s\r\n", err)
				os.Exit(1)
			}
			_, err = io.Copy(os.Stdout, resp.Body)
			_ = resp.Body.Close()
			if err != nil {
				_, _ = fmt.Fprintf(os.Stderr, "错误信息2：%s\r\n", err)
				os.Exit(1)
			}
			fmt.Printf("状态码：%d", resp.StatusCode)
		}
	}
}

0 replies

Rexoen · 2023-07-02T10:54:05Z

Rexoen
Jul 2, 2023 — with giscus

Exercises Answer

package main

import (
	"fmt"
	"io"
	"net/http"
	"os"
	"strings"
)

func main() {
	for _, url := range os.Args[1:] {
		// exercise 1.9
		if !strings.HasPrefix(url, "http") {
			url = "http://" + url
		}
		resp, err := http.Get(url)
		fmt.Printf("status code: %v\n", resp.Status) // exercise 1.8
		if err != nil {
			fmt.Fprintf(os.Stderr, "fetch: %v\n", err)
			os.Exit(1)
		}

		_, err = io.Copy(os.Stdout, resp.Body) // exercise 1.7
		resp.Body.Close()
		if err != nil {
			fmt.Fprintf(os.Stderr, "fetch: reading %s: %v\n", url, err)
			os.Exit(1)
		}
	}
}

0 replies

Kosthi · 2023-07-28T13:05:14Z

Kosthi
Jul 28, 2023 — with giscus

package main

import (
	"fmt"
	io2 "io"
	"net/http"
	"os"
	"strings"
)

func main() {
	for _, url := range os.Args[1:] {
		if !strings.HasPrefix(url, "http://") || !strings.HasPrefix(url, "https://") {
			url = "https://" + url
		}
		resp, err := http.Get(url)
		if err != nil {
			fmt.Fprintf(os.Stderr, "fetch: %v\n", err)
			os.Exit(1)
		}
		_, err = io2.Copy(os.Stdout, resp.Body)
		resp.Body.Close()
		if err != nil {
			fmt.Fprintf(os.Stderr, "fetch: reading %s: %v\n", url, err)
			os.Exit(1)
		}
		fmt.Printf("%d", resp.StatusCode)
	}
}

0 replies

corgier · 2023-11-13T09:38:08Z

corgier
Nov 13, 2023 — with giscus

package main

import (
"fmt"
"io"
"net/http"
"os"
"strings"
)

func main() {
for _, url := range os.Args[1:] {
if !(strings.HasPrefix(url, "http://")) {
url = "http://" + url
}
resp, err := http.Get(url)
if err != nil {
fmt.Fprintf(os.Stderr, "fetch: %v\n", err)
os.Exit(1)
}
//b, err := io.ReadAll(resp.Body)
io.Copy(os.Stdout, resp.Body)
fmt.Println(resp.Status)
resp.Body.Close()
if err != nil {
fmt.Fprintf(os.Stderr, "fetch: reading %s : %v\n", url, err)
os.Exit(1)
}
//fmt.Printf("%s", b)
}
}

0 replies

corgier · 2023-11-13T09:39:35Z

corgier
Nov 13, 2023 — with giscus

package main

import (
	"fmt"
	"io"
	"net/http"
	"os"
	"strings"
)

func main() {
	for _, url := range os.Args[1:] {
		if !(strings.HasPrefix(url, "http://")) {
			url = "http://" + url
		}
		resp, err := http.Get(url)
		if err != nil {
			fmt.Fprintf(os.Stderr, "fetch: %v\n", err)
			os.Exit(1)
		}
		//b, err := io.ReadAll(resp.Body)
		io.Copy(os.Stdout, resp.Body)
		fmt.Println(resp.Status)
		resp.Body.Close()
		if err != nil {
			fmt.Fprintf(os.Stderr, "fetch: reading %s : %v\n", url, err)
			os.Exit(1)
		}
		//fmt.Printf("%s", b)
	}
}

0 replies

longyi-xw · 2023-11-28T08:49:04Z

longyi-xw
Nov 28, 2023 — with giscus

练习1.7 1.8 1.9

func main() {
	f, err := os.Create("resource/body.txt")
	if err != nil {
		_, _ = fmt.Fprintf(os.Stderr, "fetch: create file %v\n", err)
		os.Exit(1)
	}
	for _, url := range os.Args[1:] {
		if !strings.HasPrefix(url, "https://") {
			url = "https://" + url
		}
		resp, err := http.Get(url)
		if err != nil {
			_, _ = fmt.Fprintf(os.Stderr, "fetch: %v\n", err)
			os.Exit(1)
		}
		_, err = io.Copy(f, resp.Body)
		_ = resp.Body.Close()
		if err != nil {
			_, _ = fmt.Fprintf(os.Stderr, "fetch: reading %s: %v\n", url, err)
			os.Exit(1)
		}
		fmt.Println(url, resp.Status)
	}
}

0 replies

jianfei96 · 2024-03-29T10:42:43Z

jianfei96
Mar 29, 2024 — with giscus

// Fetch prints the content found at a URL.
package main

import (
	"fmt"
	"io"
	"net/http"
	"os"
	"strings"
)

func main() {
	for _, url := range os.Args[1:] {
		if !strings.HasPrefix(url, "http") {
			url = "http://" + url
		}
		resp, err := http.Get(url)

		if err != nil {
			fmt.Fprintf(os.Stderr, "fetch: %v\n", err)
			os.Exit(1)
		}
		fmt.Println(resp.Status)

		_, err = io.Copy(os.Stdout, resp.Body)
		resp.Body.Close()
		if err != nil {
			fmt.Fprintf(os.Stderr, "fetch: reading %s: %v\n", url, err)
			os.Exit(1)
		}

	}
}

0 replies

xianxianghuang · 2024-04-17T11:03:37Z

xianxianghuang
Apr 17, 2024 — with giscus

package main

import (
        "net/http"
        "os"
        "io"
        "fmt"
        "strings"
)

func main() {
        for _, url := range os.Args[1:] {
                prefix := "http://"
                if !strings.HasPrefix(prefix, url) {
                        url = prefix + url
                }
                resp, err := http.Get(url)
                code := resp.StatusCode
                if err != nil {
                        fmt.Fprintf(os.Stderr, "curl: %v\n", err)
                        os.Exit(code)
                }
                //当执行到defer语句时，defer后的函数调用不会立即执行，而是被放入到一个栈中。
                //当包含defer语句的函数执行完毕时（即将返回），会按照后进先出（LIFO）的顺序执行这个栈中的所有defer调用。
                defer resp.Body.Close()
                _, err = io.Copy(os.Stdout, resp.Body)
                if err != nil {
                        fmt.Fprintf(os.Stderr, "curl reading: %v\n", err)
                        os.Exit(1)
                }
                fmt.Printf("%v\n", code)
        }
}

0 replies

GaytHub · 2024-06-02T15:15:33Z

GaytHub
Jun 2, 2024 — with giscus

打开

0 replies

lwc18 · 2024-06-06T03:23:41Z

lwc18
Jun 6, 2024 — with giscus

// Fetch prints the content found at a URL.
package main

import (
"fmt"
"io"
"net/http"
"os"
"strings"
)

func main() {
for _, url := range os.Args[1:] {
if !strings.HasPrefix(url, "http://") {
url = "http://" + url
}
resp, err := http.Get(url)
if err != nil {
fmt.Fprintf(os.Stderr, "fetch: %v\n", err)
os.Exit(1)
}
_, err = io.Copy(os.Stdout, resp.Body)
if err != nil {
fmt.Fprintf(os.Stderr, "fetch: %v\n", err)
os.Exit(1)
}
resp.Body.Close()
fmt.Println(resp.Status)
}
}

0 replies

coderZoe · 2024-06-08T12:49:59Z

coderZoe
Jun 8, 2024 — with giscus

练习1：

for _, url := range urls {
		response, err := http.Get(url)
		if err != nil || response.StatusCode != 200 {
			log.Fatal("请求失败")
		}
		//流输出
		_, err = io.Copy(os.Stdout, response.Body)
		if err != nil {
			log.Fatal("处理失败")
		}
	}

0 replies

coderZoe · 2024-06-08T13:02:54Z

coderZoe
Jun 8, 2024 — with giscus

练习2：

for _, url := range urls {
		if !strings.HasPrefix(url, "http://") {
			url = "http://" + url
		}
		response, err := http.Get(url)
		if err != nil {
			log.Fatal("请求失败")
		}
		_, err = io.Copy(os.Stdout, response.Body)
		if err != nil {
			log.Fatal("读取失败")
		}
	}

练习3

func test3(urls []string) {
	for _, url := range urls {
		response, err := http.Get(url)
		if err != nil {
			fmt.Println("请求失败")
		}
		_, err = io.Copy(os.Stdout, response.Body)
		if err != nil {
			fmt.Println("读取失败")
		}
		fmt.Println(response.Status)
		_, err = io.Copy(os.Stdout, response.Body)
		if err != nil {
			fmt.Println("读取失败")
		}
	}
}

0 replies

windqiu · 2024-08-23T09:21:38Z

windqiu
Aug 23, 2024 — with giscus

控制台输出版

	for _, url := range os.Args[1:] {
		if !strings.HasPrefix(url, "http://") && !strings.HasPrefix(url, "https://") {
			url = "http://" + url
			fmt.Fprintf(os.Stdout, "new Url: %v\n", url)
		}
		resp, err := http.Get(url)
		if err != nil {
			fmt.Fprintf(os.Stderr, "fetch: %v\n", err)
			os.Exit(1)
		}
		fmt.Fprintf(os.Stdout, "http status code: %v\n", resp.StatusCode)
		_, err = io.Copy(os.Stdout, resp.Body)
		resp.Body.Close()
		if err != nil {
			fmt.Fprintf(os.Stderr, "fetch: reading %s: %v\n", url, err)
			os.Exit(1)
		}
	}

0 replies

zhaoyanggh · 2024-08-29T06:03:34Z

zhaoyanggh
Aug 29, 2024 — with giscus

// Fetch prints the content found at a URL.
package main

import (
"fmt"
"io"
"net/http"
"os"
"strings"
)

func main() {
for _, url := range os.Args[1:] {
if !strings.HasPrefix(url, "http://") {
url = "http://" + url
}
resp, err := http.Get(url)
if err != nil {
fmt.Fprintf(os.Stderr, "fetch: %v\n", err)
os.Exit(1)
}
// code := resp.StatusCode
fmt.Printf("code: %d\n", resp.StatusCode)
_, err = io.Copy(os.Stdout, resp.Body)
if err != nil {
fmt.Fprintf(os.Stderr, "fetch: reading %s: %v\n", url, err)
os.Exit(1)
}
}
}

0 replies

Apahno · 2024-10-21T02:41:04Z

Apahno
Oct 21, 2024 — with giscus

打卡，并且表示忏悔，因为抄了评论第一的答案

0 replies

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ch1/ch1-05 #175

giscus[bot] bot Jan 25, 2023

ch1/ch1-05

Replies: 19 comments · 2 replies

wlwqq Jan 25, 2023 — with giscus

Sherlockfanchen Apr 15, 2023 — with giscus

Sherlockfanchen Apr 15, 2023 — with giscus

Zengyinjun Apr 16, 2023 — with giscus

0xJungleMonkey May 5, 2023 — with giscus

Bibooo25730 Jun 14, 2023 — with giscus

CatalinaElf Jun 17, 2023 — with giscus

Rexoen Jul 2, 2023 — with giscus

Exercises Answer

Kosthi Jul 28, 2023 — with giscus

corgier Nov 13, 2023 — with giscus

corgier Nov 13, 2023 — with giscus

longyi-xw Nov 28, 2023 — with giscus

练习1.7 1.8 1.9

jianfei96 Mar 29, 2024 — with giscus

xianxianghuang Apr 17, 2024 — with giscus

GaytHub Jun 2, 2024 — with giscus

lwc18 Jun 6, 2024 — with giscus

coderZoe Jun 8, 2024 — with giscus

coderZoe Jun 8, 2024 — with giscus

windqiu Aug 23, 2024 — with giscus

zhaoyanggh Aug 29, 2024 — with giscus

Apahno Oct 21, 2024 — with giscus

giscus[bot]
bot Jan 25, 2023

Replies: 19 comments 2 replies

wlwqq
Jan 25, 2023 — with giscus

Zengyinjun
Apr 16, 2023 — with giscus

0xJungleMonkey
May 5, 2023 — with giscus

Bibooo25730
Jun 14, 2023 — with giscus

CatalinaElf
Jun 17, 2023 — with giscus

Rexoen
Jul 2, 2023 — with giscus

Kosthi
Jul 28, 2023 — with giscus

corgier
Nov 13, 2023 — with giscus

corgier
Nov 13, 2023 — with giscus

longyi-xw
Nov 28, 2023 — with giscus

jianfei96
Mar 29, 2024 — with giscus

xianxianghuang
Apr 17, 2024 — with giscus

GaytHub
Jun 2, 2024 — with giscus

lwc18
Jun 6, 2024 — with giscus

coderZoe
Jun 8, 2024 — with giscus

coderZoe
Jun 8, 2024 — with giscus

windqiu
Aug 23, 2024 — with giscus

zhaoyanggh
Aug 29, 2024 — with giscus

Apahno
Oct 21, 2024 — with giscus