# 4   100

# a   10010

# 4   "4"
# 100110    101010


# 4  int    --  intger
# "4"  str   -- string


# 数字类型
#
# print(2**63)
# print(1.0)

# type 查看 值得数据类型


# print(type(0))  # <class 'int'>
# print(type('''5'''))  # <class 'str'>

'''
sadkhfsad
asdf
asd
f
asd
f
asd
f
asdf
as
df
'''

# one = "床前明月光，"
# two = "疑是地上霜。"
# three = one + two
# print(three)


# name = "miller,"
# print(name*3)


# 5 > 6   # 错  不成立   假    False
# 5 < 6   # 对   成立    真    Ture


# print(1+True)
# print(1+False)


# print(5>6)
# print(5<6)


# "miller", "liusir", "egon", "alex", "ritian"

# name = "miller"

# names = "miller, liusir, egon, alex, ritian"


# 列表  list

# 添加

# names = ["miller", "liusir", "egon", "alex", "ritian"]
#
# names.insert(1, "xxxxxx")
# print(names)


# names = ["miller", "liusir", "egon", "alex", "ritian"]
# names.append("black_girl")
# print(names)


# 修改


# names = ["miller", "liusir", "egon", "alex", "ritian"]
#
# names[1] = "black_girl"
#
# print(names)


# 删除
names = ["miller", "liusir", "egon", "alex", "ritian", "miller", "liusir", "egon", "alex", "ritian"]
# del names[1]
# print(names)
#
# names.remove("ritian")
# print(names)


# 判断 某个元素, 是否在列表中
# names = ["miller", "liusir", "egon", "alex", "ritian"]
# print("miller" in names)
# print("xxxx" in names)





