1a = [43,34,none,"break",12]
print(a[0]+a[2])
2import random
a= ["print","input", "while", "if", "else", "break","continue"]
while True:
index = random. randint(0,6)
print(a[index])
3a = ["print", "input","while", "if", "else", "break","continue"]
tmp = a[1]
a[1] = a[5]
a[5] = tmp
print(a)
4超过了列表长度
原文：https://www.cnblogs.com/liuliugeren/p/12221840.html