1、使用del語句刪除元素
>>> i1 = ["a",'b','c','d'] >>> del i1[0]>>> print(i1)['b', 'c', 'd']>>>
del語句將值從列表中刪除后,就再也無法訪問它了。
2、使用pop()刪除元素
pop()可刪除列表末尾的元素,并讓你能夠接著使用它。食欲彈出(pop)源自這樣的類比:列表就是一個棧,而刪除列表末尾的元素相當于彈出棧頂元素。
>>> i1 = ['cai','rui','headsome']>>> i2 = i1.pop()>>> print(i1)['cai', 'rui']>>> print(i2)headsome>>>
作用:假設列表中的摩托車是按照購買時間存儲的,就可以使用方法pop()打印一條消息,指出最后購買的是哪款摩托車:
#!/usr/bin/env python/273201.html">python/144572.html">pythonmotorcycles = ['honda','yamaha','suzuki']last_owned = motorcycles.pop()print("The last motorcycle i owned was a " + last_owned.title() + '.')================================The last motorcycle i owned was a Suzuki.彈出列表中任何位置處的元素:
#!/usr/bin/env pythonmotorcycles = ['honda','yamaha','suzuki']last_owned = motorcycles.pop(0)print("The last motorcycle i owned was a " + last_owned.title() + '.')========================================The last motorcycle i owned was a Honda.3、remove 根據值刪除元素
motorcycles = ['honda','yamaha','suzuki']motorcycles.remove('yamaha')print(motorcycles)====================================['honda', 'suzuki']注意:remove()只刪除一個指定的值。如果要刪除的值可能在列表中出現多次,就需要使用循環來判斷是否刪除了所有的值。
以上就是本文關于Python列表刪除的三種方法代碼分享的全部內容,希望對大家有所幫助。有問題請指出,感謝大家!
新聞熱點
疑難解答