python int乘float

在Python中，将int乘float会得到一个float类型的结果。例如：

x = 2
y = 3.5
z = x * y
print(z)   # 输出结果为7.0，类型为float

这是因为Python遵循浮点数优先原则，即对于任何混合运算，如果参与运算的数字中有一个是浮点数，那么结果就是浮点数。

相关问题

python int float str

As an AI language model, I can provide a brief explanation of int, float, and str in Python.

- int: An int is a data type in Python that represents whole numbers. It can be positive or negative, but it cannot have a decimal point. For example, 1, 2, 3, -4, and 0 are all integers.

- float: A float is a data type in Python that represents numbers with decimal points. For example, 1.2, 3.14159, and -0.5 are all floats.

- str: A str is a data type in Python that represents a string of characters, such as letters, numbers, or symbols. Strings are typically enclosed in quotes, either single or double. For example, "hello", 'world', "123", and "!!!" are all strings.

python怎么把float变为int

可以使用int()函数将float类型转换为int类型。例如：

a = 3.14
b = int(a)
print(b)  # 输出3

需要注意的是，将float类型转换为int类型时，小数部分会被舍去，而不是四舍五入。