list = [1, 2, 3, 4, 5] lis=[] print(type(lis)==list) 輸出: False當用list作為變量名時,用type
a=[5,2,[1,3]] print(a.sort()) 輸出:TypeError: < not supported between instances
target_str=abc str1=abcadodksiabckdfiabc new_str=str1 if str1.index(target_str)!
str1 = abacad print(str1.rindex(a)) 輸出: 4str1.rindex(‘a’)返回str1裡從後往前找到的第一個‘a’的下標
我們知道rindex只有字符串有,返回從後往前找到的第一個匹配項的下標。列表沒有rindex,如果需要的話需要自己實現。下面是一種實現方法:def list_r
Words Excel Data sheet , Long period of division 、 A long time must be divided.
The definition of process coroutines (Coroutine), Also called tasklet , fibers
今天在寫圖形學項目時,導入Python標准庫中的time庫,想要使用其中的gmtime()獲取系統時間,但是調試時總是出錯。 於是本人在多次徒勞嘗試之後,一怒之
Personal home page : Huang Xiaohuangs blog home page ️ Stand by me : give the
Personal home page : Huang Xiaohuangs blog home page ️ Stand by me : give the
This is wrong , Does anyone know this , Ive changed it myself for a long time, b
Python Programming based One 、 brief introduction 1.Python Interpreter 2. chara
We know rindex Only strings have , Returns the subscript of the first match foun
str1 = abacad print(str1.rindex(a)) Output : 4str1.rindex(‘a’) return str1 The