使用remove()方法:在循环中调用remove()方法删除找到的元素,直到列表中没有该元素为止。 代码示例: python def remove_all_elements(lst, val): while val in lst: lst.remove(val) return lst # 示例列表 example_list = [1, 2, 3, 2, 4, 2, 5] # 要删除的元素 value_to_remove = 2 # 调用函...
for (int i = 0; i < list.size(); i++) { if (Objects.equals(list.get(i), 2)) { // IDEA警告:Suspicious 'List.remove()' in the loop list.remove(i); // !!!回退索引!!! i--; } } System.out.println(list); // [1, 3, 4] Assertions.assertEquals(list.size(), 3); } ...
Let's say you have two lists x and y and you want to remove all elements in x that are in y. You could do something like this: new_list=[]
It is possible to delete list elements with remove, pop, and clear functions and the del keyword. Python list removeThe remove function removes the first occurrence of the given value. It raises ValueError if the value is not present.
Given an array nums and a value val, remove all instances of that value in-place and return the new length. Do not allocate extra space for another array, you must do this by modifying the input array in-place with O(1) extra memory. The order of elements can be changed. It doesn'...
Example 2: remove() method on a list having duplicate elements If a list contains duplicate elements, theremove()method only removes the first matching element. # animals listanimals = ['cat','dog','dog','guinea pig','dog'] # 'dog' is removedanimals.remove('dog') ...
list_data=[[1,2,3],[4,5,6],[7,8,9],[4,5,6]]elements_to_remove=[4,5,6]forrowinlist_data:ifall(elementinrowforelementinelements_to_remove):list_data.remove(row)print(list_data) 1. 2. 3. 4. 5. 6. 7. 8. 9.
The order of elements can be changed. It doesn't matter what you leave beyond the new length. classSolution(object):defremoveElement(self, nums, val):""":type nums: List[int] :type val: int :rtype: int"""whilevalinnums: nums.remove(val)returnlen(nums)...
my_list = ['a','b','c','d','e']#num of elements we want to removen =2print(my_list[:-n]) Output: ['a', 'b', 'c'] When thestartoption isundefined, it is considered as 0 index. Here in the example, we set n to2and usedmy_list[:-2], which means extract all the...
The order of elements can be changed. It doesn't matter what you leave beyond the new length. 代码: oj测试通过 Runtime: 43 ms 1classSolution:2#@param A a list of integers3#@param elem an integer, value need to be removed4#@return an integer5defremoveElement(self, A, elem):6length...