1. 根据用户输入输出对应的backend下的server信息

2. 可添加backend 和sever信息，如果存在则不添加，不修改

4. 可删除backend 和sever信息

5. 首先选择要进入哪种模式（查询，增加，删除），按q退出整个操作，在某种模式内时按b退出重新选择，不退出则 一直处于某种模式内

#Auther:He Jianhan

#查
def hanshu(names,fliens):
    print(fliens[names].rstrip())
    if names+1 < len (fliens):
        if "bakend" not in fliens[names+1] and "backend" not in fliens[names+1]:
            return hanshu(names+1,fliens)
#删除
def delets(names,fliens):
    del fliens[names]
    if names < len(fliens):
        if "bakend" not in fliens[names]:
            print("aaa")
            return delets(names,fliens)



#打开文件
f = open("task","r",encoding="utf-8")
fliens = f.readlines()
come = True
while come:
    choice = ["check","increase","delet"]
    for n,c in enumerate(choice):
        print(n,c)
    number = input("你选择什么，输入编号==》")
    if number.isdigit():
        number = int(number)
        if -1<number<len(choice):
            if choice[number] == "check":
                f = open("task", "r", encoding="utf-8")
                fliens = f.readlines()
                while come:
                    name = input("输入你要查找的内容")
                    name1 = "backend "+name+"\n"
                    name2 = "bakend "+name+"\n"
                    if name1 in fliens:
                        names = fliens.index(name1)
                        hanshu(names,fliens)
                    elif name2 in fliens:
                        names = fliens.index(name2)
                        hanshu(names, fliens)
                    elif name == "q":
                        come = False
                    elif name == "b":
                        break
                    else:
                        print("没有你要查找的内容")
                f.close()

            elif choice[number] == "increase":
                f = open("task", "r", encoding="utf-8")
                f_news = open("task", "a", encoding="utf-8")
                while come:
                    name = input("输入你要增加的内容")
                    if name == "q":
                        come = False
                    elif name == "b":
                        break
                    else:
                        name = eval(name)
                        namebakend = "bakend "+name["bakend"]+"\n"
                        fliens = f.readlines()
                        if namebakend not in fliens:
                            f_news.write("bakend ")
                            f_news.write(name["bakend"]+"\n")
                            f_news.write("       ")
                            for key,values in name["record"].items():
                                f_news.write(" "+key+" "+str(values))
                            f_news.write("\n")
                            f_news.flush()
                        else:
                            print("之前输入过了")
                f.close()
                f_news.close()
            elif choice[number] == "delet":
                f = open("task", "r", encoding="utf-8")
                while come:
                    fliens = f.readlines()
                    name2 = input("输入你要删除的内容")
                    name = "bakend " + name2 + "\n"
                    if name in fliens:
                        f_news = open("task", "w", encoding="utf-8")
                        names = fliens.index(name)
                        delets(names,fliens)
                        for fliens_s in fliens:
                            f_news.write(fliens_s)
                        f_news.close()
                    elif name2 == "q":
                        come = False
                    elif name2 == "b":
                        break
                    else:
                        print("没有你要查找的内容")
                f.close()
        else:
            print("没有这个编号")
    elif number == "q":
        come = False
    else:
        print("输入错误")