習題35 - 分支和函數

用Notepad++打下列的程式碼,
另存為ex35.py. 我附上中文注釋方便好讀.

from sys import exit

# 定義一個函數叫gold_room.
def gold_room():
    print("This room is full of gold. How much do you take?")
   
    # 當輸入數字, 就繼續.
    # 當輸入非數字, 就跑dead函數.
    choice = input("> ")
    if "0" in choice or "1" in choice:
        how_much = int(choice)
    else:
        dead("Man, learn to type a number")
   
    # 當輸入數字小於50, 就跑exit函輸.
    # 當輸入數字大於50, 就跑dead函數.
    if how_much < 50:
        print("Nice, you're not greedy, you win!")
        exit(0)
    else:
        dead("You greedy bastard!")

# 定義一個函數叫bear_room, 並印出來下面四行.
# 然後定義bear_moved為False.
def bear_room():
    print("There is a bear here.")
    print("The bear has a bunch of honey.")
    print("The fat bear is in front of another door.")
    print("How are you going to move the bear?")
    bear_moved = False
   
    # 進入一個名為True的循環.
    while True:
        choice = input("> ")

        # 當輸入take honey, 就跑dead函數.
        if choice == "take honey":
            dead("The bear looks at you then slaps your face off.")

        # 當輸入taunt bear, 則定義bear_moved為True, 再重新循環一次.
        elif choice == "taunt bear" and not bear_moved:
            print("The bear has moved from the door.")
            print("You can go through it now.")
            bear_moved = True
           
        # 當輸入taunt bear, 且and bear_moved為True, 就跑dead函數.
        elif choice == "taunt bear" and bear_moved:
            dead("The bear gets pissed off and chews your leg off.")
       
        # 當輸入open door, 且and bear_moved為True, 就跑gold_room函數.
        elif choice == "open door" and bear_moved:
            gold_room()
        else:
            print("I got no idea what that means.")

# 定義一個函數叫cthulhu_room, 並印出來下面三行.
def cthulhu_room():
    print("Here you see the great evil Cthulhu.")
    print("He, it, whatever stares at you and you go insane.")
    print("Do you flee for your life or eat your head?")

    choice = input("> ")
   
    # 當輸入flee, 就跑start函數.
    if "flee" in choice:
        start()
       
    # 當輸入head, 就跑dead函數.
    elif "head" in choice:
        dead("Well that was tasty!")
   
    # 除了以上兩個, 就再跑一次cthulhu_room函數.
    else:
        cthulhu_room()

# 定義一個函數叫dead, 並印出來參數(why)跟Good job!   
def dead(why):
    print(why, "Good job!")
    exit(0)

# 定義一個函數叫start, 並印出來下面三行.   
def start():
    print("You are in a dark room.")
    print("There is a door to your right and left.")
    print("Which one do you take?")
   
    choice = input("> ")
   
    # 當輸入left, 就跑bear_room函數.
    if choice == "left":
        bear_room()
   
    # 當輸入right, 就跑cthulhu_room函數.
    elif choice == "right":
        cthulhu_room()
       
    # 除了以上兩個輸入, 就跑dead函數.
    else:
        dead("you stumble around the room until you starve.")

# 開始跑start函數       
start()

然後用Windows的cmd, 執行python.

C:\Windows\System32>cd C:\Users\Peter\Desktop\Python\LP3THW
C:\Users\Peter\Desktop\Python\LP3THW>python ex35.py
You are in a dark room.
There is a door to your right and left.
Which one do you take?
> left
There is a bear here.
The bear has a bunch of honey.
The fat bear is in front of another door.
How are you going to move the bear?
> taunt bear
The bear has moved from the door.
You can go through it now.
> open door
This room is full of gold. How much do you take?
> 10
Nice, you're not greedy, you win!

C:\Users\Peter\Desktop\Python\LP3THW>

完成


最初發表 / 最後更新: 2018.09.15 / 2018.09.15