程序的注释和算术运算符

# 这是注释
print("Hello World!")  # 代码后面的注释
print("Hello Python")
"""
这是多行注释
可以用三个双引号或者单引号都可以
"""
print(1*2**4) # **为幂乘积
print(3**2)
print(9//4) # //为去整除 9//4=2
print(9%4) # %为取余数 9%4=1


# 定义一个qq号码变量和密码变量并输出
qq_number = "123456"
qq_password="123"
print(qq_number)
print(qq_password)

count = 1
count += 1 # 就是count = count + 1
count -= 1 # 就是count = count - 1
count **= 1 # 就是count = count ** 1
count /= 1 # 就是count = count / 1
count *= 1 # 就是count = count * 1
count //= 1 #就是count = count // 1
count %= 1 #就是count = count % 1