输诚

摘要： 已知x = [3,5,7],那么执行语句x[len(x):] = [1,2]之后,x的值为:x = [3,5,7]x[len(x):] = [1,2]print(x) # [3, 5, 7, 1, 2] 已知x = [[1]]*3,那么执行语句`x[0][0]=5`之后,变量x的值为:x = [[1 阅读全文