作业1：对文件haproxy.conf进行增删改查：
haproxy.conf原文件内容如下：
global log 127.0.0.1 local2 daemon maxconn 256 log 127.0.0.1 local2 info defaults log global mode http timeout connect 5000ms timeout client 50000ms timeout server 50000ms option dontlognull listen stats :8888 stats enable stats uri /admin stats auth admin:1234 frontend oldboy.org bind 0.0.0.0:80 option httplog option httpclose option forwardfor log global acl www hdr_reg(host) -i www.oldboy.org use_backend www.oldboy.org if www backend www.oldboy1.org server 10.10.0.10 10.10.0.10 weight 9999 maxconn 33333333333 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 3000 backend www.oldboy2.org server 3.3.3.3 3.3.3.3 weight 20 maxconn 3000 backend www.oldboy20.org server 1.1.1.1 1.1.1.1 weight 9999 maxconn 3333
作为小白还是有些许的成就感，但代码中还存在很多很多的bug，以后会逐渐完善，我的代码如下：
def delete(): l=[] with open("haproxy.conf",encoding="utf8") as f_read: print('''请输入如下格式的内容： {'backend':'www.oldboy20.org','record':{'server':'1.1.1.1 1.1.1.1','weight':9999,'maxconn':3333}} ''') arg=input("please input your url:").strip() arg=eval(arg) for line in f_read: if line.strip().startswith("server") and arg["record"]["server"] in line: l.append(line) with open("haproxy.conf", encoding="utf8") as f_read, open("test", mode="w", encoding="utf8") as f_write: for i in f_read: if i not in l: f_write.write(i) print("删除成功") # import os # os.rename("haproxy.conf", "haproxy.conf_bak") # os.rename("test","haproxy.conf") def add(): l=[] flag=False with open("haproxy.conf",encoding="utf8") as f_read, open("test", mode="w", encoding="utf8") as f_write: print('''请输入如下格式的内容： {'backend':'www.oldboy20.org','record':{'server':'1.1.1.1 1.1.1.1','weight':9999,'maxconn':3333}} ''') arg=input("please input your url:").strip() arg=eval(arg) for line in f_read: if line.startswith("backend") and arg["backend"] in line: l.append(arg["record"]) line="".join([line.strip()+" "+" server %s weight %s maxconn %s" %(arg["record"]["server"],arg["record"]["weight"],arg["record"]["maxconn"])+" "]) f_write.write(line) print("增加成功") def modify(): l=[] flag=False with open("haproxy.conf",encoding="utf8") as f_read, open("test", mode="w", encoding="utf8") as f_write: print('''请输入如下格式的内容： {'backend':'www.oldboy20.org','record':{'server':'1.1.1.1 1.1.1.1','weight':9999,'maxconn':3333}} 该脚本暂不能修改server的值 ''') arg=input("please input your url:").strip() arg=eval(arg) for line in f_read: if line.strip().startswith("server") and arg["record"]["server"] in line: l.append(arg["record"]) flag=True if flag: line=" server %s weight %s maxconn %s" %(arg["record"]["server"],arg["record"]["weight"],arg["record"]["maxconn"]) f_write.write(line) print("修改成功") def see(): print('''请输入如下格式的内容： www.oldboy2.org ''') arg=input('please input your url:').strip() l=[] flag=False with open("haproxy.conf",encoding="utf8") as f_read: for line in f_read: if line.startswith("backend") and arg in line: flag=True continue if line.startswith("backend") and flag: break if flag: l.append(line.strip()) for i in l: print(i) print("查看成功") while True: print(''' ------------------- 删除--->删 增加--->增 修改--->改 查看--->查 ------------------- ''') need=input("your need>>>:").strip() if need=="删": delete() continue if need=="增": add() continue if need=="改": modify() continue if need=="查": see() else: print("请输入正确的操作指令！！！")
作业2：输入用户名密码，认证成功后显示欢迎信息，输错三次后锁定：
用户信息表如下：
aaa---123 bbb---456 ccc---789 ddd---666
代码如下（憋了一上午，让我深深的明白了缩进和语句位置的重要性！！！）：
def lock(username): with open("heimingdan", "a") as f: f.write(username) f.write(' ') # f_read=open("name+passwd",encoding="utf8") # f_write=open("heimingdan", encoding="utf8", mode="r+") # f_write.write("aaa ") with open("name+passwd",encoding="utf8") as f_read,open("heimingdan", encoding="utf8") as f_write: flag=True l=[] while flag : user_name=input("请输入您的用户名:") f_write.seek(0) for i in f_write: if i.strip() == user_name: print("此用户已被锁定") exit() user_pwd=input("请输入您的密码:") f_read.seek(0) for line in f_read: name,passwd=line.strip().split("---") # print(name,passwd) if user_name == name : l.append(user_name) if user_pwd == passwd: print("您已成功登录，欢迎光临！") flag=False break if l.count(user_name)==3 and flag!=False: lock(user_name)