[TOC] # 簡單爬蟲 ~~~ //爬取網頁內容 func httpGet(url string) (result string, err error) { resp, err1 := http.Get(url) if err1 != nil { err = err1 return } defer resp.Body.Close() //讀取網頁的內容 buf := make([]byte, 1024*4) for { n, err := resp.Body.Read(buf) if n == 0 { //讀取結束,或者出問題 fmt.Println("resp.body err: ", err) break } result += string(buf[:n]) } return } func DoWork(start, end int) { fmt.Printf("正在爬取 %d 到 %d的頁面\n", start, end) //明確目標 for i := start; i <= end; i++ { url := "https://tieba.baidu.com/f?kw=%E7%BB%9D%E5%9C%B0%E6%B1%82%E7%94%9F&ie=utf-8&pn=" + strconv.Itoa((i-1)*50) fmt.Println(url) //爬取頁面 result, err := httpGet(url) if err != nil { fmt.Println("http err: ", err) //跳出 continue } fmt.Println("內容是: ", result) } } func main() { //https://tieba.baidu.com/f?kw=%E7%BB%9D%E5%9C%B0%E6%B1%82%E7%94%9F&ie=utf-8&pn=200 var start, end int fmt.Println("請輸入起始頁( >= 1): ") fmt.Scan(&start) fmt.Printf("請輸入終止頁(>=起始頁): ") fmt.Scan(&end) DoWork(start, end) } ~~~