#倒序删除 li1=[00,11,22,33,44,55,66,77,88,99] count = len(li1)-1 while count >= 0: if count % 2 != 0: li1.pop(count) count -= 1 print(li1) #切片法 li1=[00,11,22,33,44,55,66,77,88,99] li1 = li1[::2] print(li1) #倒序删除 li1=[00,11,22,33,44,55,66,77,88,99] for i in range(len(li1)-1,-1,-2): #到0的话第一个元素将打印不出来 li1.pop(i) print(li1) #创建一个新列表 li1=[00,11,22,33,44,55,66,77,88,99] li2 = [] for i in range(len(li1)): if i % 2 == 0: li2.append(li1[i]) print(li2)