三、 python筆記控制語句if

# if語句

client_balance = 1000

bank_balance = 10000000

print("You have " + str(client_balance) + "RMB in your game balance." + " You have "+str(bank_balance) + "RMB in your bank balance, Tuhao !")

if client_balance < 2000:

    client_balance += 1500

    bank_balance -= 1500

print
 
("You have " + str(client_balance) + "RMB in your game balance." + " You have "+str(bank_balance) + "RMB in your bank balance, Tuhao !")

輸出：

You have 1000RMB in your game balance. You have 10000000RMB in your bank balance, Tuhao !

You have 2500RMB in your game balance. You have 9998500RMB in your bank balance, Tuhao !

# if-elif-else判斷

name = "Tony"

if name == "Tony":

    print("Hello Tony")

elif name == "Marry":

    print("Hello Marry")

elif name == "Garry":

    print("Hello Garry")

else:

print("Go away!")

輸出：

Hello Tony

# 復雜的布爾表達式

# BMI計算

weight = 75

height = 1.85

if
 
 18.5 <= weight/height ** 2 <= 25:

    print("Will, you are in good shape " + " BMI: " + str(weight/height ** 2))

else:

print("Will, you need to work harder " + "BMI:" + str(weight/height ** 2))

輸出：

Will, you are in good shape BMI: 21.913805697589478

# 布爾表達式判斷

tall = True

rich = True

handsome = True

if tall and rich and handsome:

    print("He is the one!")

else:

print("Pass!")

輸出：

He is the one!

三、 python筆記控制語句if