python学习笔记——叁之修改配置文件

简单流程循环输出 3个操作选项 读，修改，删除输入 1  2  3在得到输入的数字后 然后执行相应的方法

import os

def read():    "读取"    with open("haproxy.txt","r",encoding="utf-8") as r1 :        list1= r1.readlines()

for line in list1 :           if "backend" in line :               list1_index=list1.index(line)+1               break

list2=list1[list1_index:]        for line_new in  list2 :            print(line_new)

# def crtate(bakend,server,weight,maxconn):def crtate(*args):    "创建"    with open("haproxy.txt","a+",encoding="utf_8") as a1:        arg = {            ‘bakend‘: args[0],            ‘record‘: {                ‘server‘: args[1],                ‘weight‘: args[2],                ‘maxconn‘: args[3]            }        }        print(type(arg))        for i in  arg :            print(i,arg[i])            if i=="record":                 a1.write("\n\t\t"+str(arg.get("record")).replace("‘","").replace("{"," ").                          replace("}"," ").replace(":",""))            else:                a1.write("\n"+str(i))                a1.write(" "+str(arg[i]))        a1.flush()

def  delete(x):    "删除"    with open("haproxy.txt","r",encoding="utf-8") as  d1 ,\        open("haproxy_new.txt","w",encoding="utf-8") as d2 :        d1a=d1.readlines()        for index,line in enumerate(d1a):            if x in line :                  print(index)                  delete_index=index        print(d1a[delete_index])        print(d1a[delete_index+1])        # d1.seek(0)        d1a.pop(delete_index)        d1a.pop(delete_index)        for i in d1a :            d2.write(i)        os.rename("haproxy.txt","haproxy.bak")        os.rename("haproxy_new.txt","haproxy.txt")

while True:    q=input("请输入操作编号 1.读取 2.增加 3.删除>>")    if q=="1":        read()    if q=="2":        w=input("第一个>>>:")        w1 = input("第二个>>>:")        w2 = input("第三个>>>:")        w3 = input("第四个>>>:")        print(w,w1,w2,w3)        crtate(w,w1,w2,w3)    if q=="3":        s=input("输入一个参数>>>")        delete(s)