pop()removes and returns the last element from the list. However, we can also specify the index of the element to be removed. So, here we will use the index number of the first element to remove it.
Below is a basic example of using theremove()function. The function will remove the item with the value3from the list. Theremove()function will only remove the first occurrence of an item in a list if there are duplicates in the same list. In the following example, theremove()function ...
def remove(self, value): # real signature unknown; restored from __doc__ """ L.remove(value) -> None -- remove first occurrence of value. Raises ValueError if the value is not present. """ pass 1. 2. 3. 4. 5. 6. 样例: list = [1,2,3,4] list.remove(3) #删除队列中的3...
1>>>help(list.remove)2Help on method_descriptor:34remove(...)5L.remove(value) --remove first occurrence of value. #移除某个值得第一个匹配项6Raises ValueErrorifthe valueisnotpresent.78>>> a =["test","test","demo"]9>>> a.remove("test")10>>>a11['test','demo']12>>> a.remove(...
[-3:-1] # it does not include the last index,['orange', 'mango']orange_mango_lemon = fruits[-3:] # this will give starting from -3 to the end,['orange', 'mango', 'lemon']reverse_fruits = fruits[::-1] # a negative step will take the list in reverse order,['lemon', '...
| | remove(...) | L.remove(value) -> None -- remove first occurrence of val...
""" Remove and return the leftmost element. """ pass (9)def remove(self, value): 删除指定元素 # real signature unknown; restored from __doc__ """ D.remove(value) -- remove first occurrence of value. """ pass (10)def reverse(self): 翻转 ...
a. innerText 获取标签中的文本内容 标签.innerText 对标签内部文本进行重新复制 标签.innerText = "" b. className tag.className =》 直接整体做操作 tag.classList.add('样式名') 添加指定样式 tag.classList.remove('样式名') 删除指定样式 c. checkbox 获取值 checkbox对象.checked 设置值 checkbox对象.check...
index(<el>) # Returns index of the first occurrence or raises ValueError. <el> = <list>.pop() # Removes and returns item from the end or at index if passed. <list>.insert(<int>, <el>) # Inserts item at index and moves the rest to the right. <list>.remove(<el>) # Removes...
You can also use theremove()method to remove an element from the array. Example Delete the element that has the value "Volvo": cars.remove("Volvo") Try it Yourself » Note:The list'sremove()method only removes the first occurrence of the specified value. ...