一、通过for循环直接遍历

user1 = ["宋江","林冲","卢俊义","吴用"]
for user in user1:
    print(user)

 二、通过range函数

user1 = ["宋江","林冲","卢俊义","吴用"]
for i in range(len(user1)):
    print(i, user1[i])

 三、通过iter迭代器

user1 = ["宋江","林冲","卢俊义","吴用"]
for x in iter(user1):
 print(x)

 四、通过enumerate函数

user1 = ["宋江","林冲","卢俊义","吴用"]
for col,field in enumerate(user1):
    print(col,field)

五、准备睡觉了