
目前只有 if,沒有 switch
基本判斷
if True:
print("true")
else:
print("false")
抓取輸入值判斷
x = input("輸入數字:")
x = int(x)
if x > 200:
print("大於 200")
elif x > 100:
print("大於 100, 小於等於 200")
else:
print("小於等於 100")
四則運算
n1 = int(input("輸入數字一:"))
n2 = int(input("輸入數字二:"))
op = input("輸入運算:+, -, *, /")
if op == "+":
print(n1 + n2)
elif op == "-":
print(n1 - n2)
elif op == "*":
print(n1 * n2)
elif op == "/":
print(n1 / n2)
else:
print("沒有這運算符號")
三元運算子
# 條件為真, 反回真 否則 反回假
# condition_is_true if condition else condition_is_false
is_fat = True
state = "fat" if is_fat else "not fat"
print(state)
#(反回假, 反回真)[真或假]
#(if_test_is_false, if_test_is_true)[test]
fat = False
fitness = ("skinny", "fat")[fat]
print("Ali is", fitness)




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