1、使用del语句删除元素
>>> i1 = ["a",'b','c','d'] >>> del i1[0]>>> print(i1)['b', 'c', 'd']>>>
del语句将值从列表中删除后,就再也无法访问它了。
2、使用pop()删除元素
pop()可删除列表末尾的元素,并让你能够接着使用它。食欲弹出(pop)源自这样的类比:列表就是一个栈,而删除列表末尾的元素相当于弹出栈顶元素。
>>> i1 = ['cai','rui','headsome']>>> i2 = i1.pop()>>> print(i1)['cai', 'rui']>>> print(i2)headsome>>>
作用:假设列表中的摩托车是按照购买时间存储的,就可以使用方法pop()打印一条消息,指出最后购买的是哪款摩托车:
#!/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.
弹出列表中任何位置处的元素:
#!/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 根据值删除元素
motorcycles = ['honda','yamaha','suzuki']motorcycles.remove('yamaha')print(motorcycles)====================================['honda', 'suzuki']
注意:remove()只删除一个指定的值。如果要删除的值可能在列表中出现多次,就需要使用循环来判断是否删除了所有的值。
以上就是本文关于Python列表删除的三种方法代码分享的全部内容,希望对大家有所帮助。有问题请指出,感谢大家!
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