Python的数据类型的简单应用

1.定义7种基本类型的变量，并输出类型和id

int_var = 1
float_var = 1.1
complex_var = 7+7j
str_var = 123
bytes_var = bytes
bool_var = True
none_var = None
print(type(int_var))
print(type(float_var))
print(type(complex_var))
print(type(str_var))
print(type(bytes_var))
print(type(bool_var))
print(type(none_var))

print(id(int_var))
print(id(float_var))
print(id(complex_var))
print(id(str_var))
print(id(bytes_var))
print(id(bool_var))
print(id(none_var))

运行结果：

2381660711216
2381667140880
2381668800240
2381660903600
140719310069840
140719310067816
140719310118104

2.使用四种形式定义字符串

one_var = "123"
two_var = '123'
three_var = '''123'''
four_var = """"123"""
print(type(one_var))
print(type(two_var))
print(type(three_var))
print(type(four_var))

运行截图：

  打印 I'm a good boy/girl  

print("I'm a good boy")


I'm a good boy

  打印 "666"

print('666')

666

  且将两次要print的内容输出在同一行

print("I'm a good boy", end="")
print(' 666', sep=" ")

3.画出序列：存储的是1234567890，画出对应的正向下标和负向下标