输入网址，得到网址下的信息

网址文件py.txt内容：

global       log 127.0.0.1 local2       daemonbackend oldboy.org       bind 0.0.0.0:80       option httplog       option httpclose       option forwardfor       log globalbackend www.oldboy1.org       server 10.10.0.10 10.10.0.10 weight 9999 maxconn 3333333       server 10.10.10.1 10.10.10.1 weight 22 maxconn 2000       server 2.2.2.4 2.2.2.4 weight 20 maxconn 3000backend www.oldboy2.org       server 3.3.3.3 3.3.3.3 weight 20 maxconn 3000backend www.oldboy20.org       server 10.10.0.10 10.10.0.10 weight 9999 maxconn 3333333

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# 标志位while 1:    m=input("please input url:").strip()    l=[]    flag=False    with open("py.txt",mode="r",encoding="utf8") as f_read:        for line in f_read:            if line.startswith("backend") and m in line:                flag=True                continue

if line.startswith("backend") and flag:                break

if flag:                l.append(line)

for i in l:            print(i)

原文地址：https://www.cnblogs.com/jensenxie/p/8457754.html