书爱上python

源码是在网上找的网页 print('a={}'.format(2)) print('-------') #list print('------') a=[1,2,3,4] print(a[-1]) # first index is 0 a.insert(4,5) print(a) a.append(6) print(a) b = a.pop() print(a, b) # 删除第二个元素 a.pop(1) print(a) # tuple print('---------') a...