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#判斷式if
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if True :
print ( "True 執行" )
else :
print ( "False 執行" )
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True 執行
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if False :
print ( "True 執行" )
else :
print ( "False 執行" )
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False 執行
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x = input ( "請輸入數字︰" )
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" )
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輸入42
小於等於 100
輸入150
大於 100,小於等於 200
#四則運算
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n1 = int ( input ( "請輸入數字一︰" ))
op = input ( "請輸入運算︰+, -, *, /:" )
n2 = int ( input ( "請輸入數字二︰" ))
if op = = "+" :
print (n1 + n2)
elif op = = "-" :
print (n1 - n2)
elif op = = "*" :
print (n1 * n2)
elif op = = "/" :
print (n1 / n2)
else :
print ( "不支援的運算" )
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輸入84
輸入+
輸入55
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練習-2 <<
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