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                [TOC] # 算術運算符 ![](https://box.kancloud.cn/3fd45d6e6a4f262caa8a4551c44fed2f_785x353.png) # 復合賦值運算符 ![](https://box.kancloud.cn/ee42f858d32bb883c642109a27ad3397_786x356.png) # 比較運算符 ![](https://box.kancloud.cn/7e36662cf7386b4130ca007670ef3e0e_784x622.png) # 邏輯運算符 ![](https://box.kancloud.cn/5fe3435f4cd33eb5ae9a42f6f09e6a46_785x304.png) # 除法 在Python中,有兩種除法,一種除法是/: ~~~ >>> 10 / 3 3.3333333333333335 ~~~ `/`**除法計算結果是浮點數**,**即使是兩個整數恰好整除,結果也是浮點數**: ~~~ >>> 9 / 3 3.0 ~~~ 還有一種除法是//,稱為地板除,兩個整數的除法仍然是整數: ~~~ >>> 10 // 3 3 ~~~ 你沒有看錯,**整數的地板除`//`永遠是整數,即使除不盡**。**要做精確的除法,使用/就可以**。 因為//除法只取結果的整數部分,所以Python還提供一個余數運算,可以得到兩個整數相除的余數: ~~~ >>> 10 % 3 1 ~~~ 無論整數做//除法還是取余數,結果永遠是整數,所以,整數運算結果永遠是精確的
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