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              兩種創建方式【每日一個知識點第380期-Python】

              (1) 直接賦值

              s?=?"abcdef"

              (2) 通過str()函數

              str()函數的作用,相當于是通過傳入的參數,生成一個string型的對象,這個傳入的參數可能是整型,浮點型,也能是列表,元組,字典等。

              s?=?str(21)?#?>>>?"21"
              s?=?str(12.3)?#?>>>?"12.3"
              s?=?str([1,?2,?3])?#?>>>?"[1,?2,?3]"

              需要注意的是,“傳入的是什么,得到的就是什么”比如我們傳一個列表進去的話,得到的字符串的第一個字符可不是列表的第一個元素,而是”[“,同理 , 也被看做是字符串的一部分

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