Python learning roadmap (latest version 2021)

This is a set of learning routes when I first started to learn Python, from getting started to getting started. (I dare not say proficient, haha~)

One, Python basic knowledge, variables, data types

Two, Python conditional structure, loop structure

Three, Python function

Four, comprehensive exercises, make a console employee management

"""
需求：员工管理系统
功能:
1.添加员工信息
2.删除员工信息
3.修改员工信息
4.查看单个员工信息
5.查看所有员工信息
6.退出

技术：函数、数据类型(字典列表)、循环、条件语句
"""
emps = []   # [{},{}]


def chocieFunc():
"""选择功能列表"""
    print("*" * 30)
    print("1.添加员工信息")
    print("2.删除员工信息")
    print("3.修改员工信息")
    print("4.查看单个员工信息")
    print("5.查看所有员工信息")
    print("6.退出")
    print("*" * 30)


def addEmp():
"""添加员工信息"""
    id = input("请输入要添加的员工编号：")
    name = input("请输入要添加的员工姓名：")
    gender = input("请输入要添加的员工性别：")
    age = input("请输入要添加的员工年龄：")
    emp = {"id": id, "name": name, "gender": gender, "age": age}
    emps.append(emp)
    print("添加OK！")


def delEmp():
"""删除员工信息"""
    id = input("请输入要删除的员工编号：")
for emp in emps:
if emp.get("id") == id:
# 将emp删除,从emps
            emps.remove(emp)
            print("删除OK！")
break
else:
        print("请输入正确的员工编号")


def updateEmp():
"""修改员工信息"""
    id = input("请输入要修改的员工编号：")
for emp in emps:
if emp["id"] == id:
# 特别注意
            emp["name"] = input("请输入要修改后的员工姓名：")
            emp["gender"] = input("请输入要修改后的员工性别：")
            emp["age"] = input("请输入要修改后的员工年龄：")
# emp = {"id": id, "name": name, "gender": gender, "age": age}
# 先删除原有的emp,在追加新的emp【不推荐】
            print("修改成功！！！")
break
else:
        print("查无此人！！！")


def getEmpById():
"""查看单个员工信息"""
    id = input("请输入要查询的员工编号：")
for emp in emps:
if emp["id"] == id:
            print("编号\t姓名\t性别\t年龄")
            print(f"{emp['id']}\t{emp['name']}\t{emp['gender']}\t{emp['age']}")
break
else:
        print("查无此人！！！")


def getAllEmps():
"""查看所有员工信息"""
    print("编号\t姓名\t性别\t年龄")
for emp in emps:
        print(f"{emp['id']}\t{emp['name']}\t{emp['gender']}\t{emp['age']}")
else:
        print(f"共查询到{len(emps)}条数据")


print("******欢迎使用员工管理系统******")
while True:
    chocieFunc()
    num = int(input("请输入指令:"))
if num == 1:
        addEmp()
elif num == 2:
        delEmp()
elif num == 3:
        updateEmp()
elif num == 4:
        getEmpById()
elif num == 5:
        getAllEmps()
elif num == 6:
        print("欢迎下次再来！！！")
break
else:
        print("请输入正确的指令")

Five, string