集合列表字典都可使用
list1=[] list1=[i for i in range(1,10)] print(list1) ##带if list2=[i for i in range(1,10) if i%2==0] print(list2) #嵌套 #创建列表[(1,0),(1,1),(1,2),(2,0),(2,1),(2,2)] list3=[(i,j) for i in range(1,3) for j in range(0,3)] print(list3)