python小脚本

name=['刘备','关羽','张飞','赵云','马超']
print('名片管理系统1.0\n1.增加一个新的名片\n2.删除一个名片\n3.修改一个名片\n4.查找一个名片\n5.退出名片管理系统')
a=int(input('请输入你要执行的选项:'))
i=0
while i <= 4:
if a == 1:
names = input('请输入新的名片:')
name.append(names)
print(name)

if a == 2:
    print(name)
    names = input('请输入删除哪一个名片:')
    name.remove(names)
    print(name)
if a == 3:
    print(name)
    b = input('请问要修改哪个名片:')
    j = 0
    for c in name:
        if c == b:
            names = input('请输入要修改的名片:')
            name[j] = names
        j += 1
    print(name)
if a == 4:
    d = input('请输入要查找的名片:')
    if d in name:
        print('%s' % d)
if a <= 4:
    print('返回上一级请输入q:')
    l=input('')
i += 1

if a == 5:
print('欢迎下次登陆')