# Python 程序：使用匿名函数显示 2 的幂 > 原文： [https://www.programiz.com/python-programming/examples/power-anonymous](https://www.programiz.com/python-programming/examples/power-anonymous) #### 在此程序中，您将学习使用 Python 匿名函数显示整数 2 的幂。 要理解此示例，您应该了解以下 [Python 编程](/python-programming "Python tutorial")主题： * [Python `for`循环](/python-programming/for-loop) * [Python 匿名/ Lambda 函数](/python-programming/anonymous-function) * * * 在下面的程序中，我们使用了内置函数`map()`内的匿名（lambda）函数来查找 2 的幂。 ## 源代码 ```py # Display the powers of 2 using anonymous function terms = 10 # Uncomment code below to take input from the user # terms = int(input("How many terms? ")) # use anonymous function result = list(map(lambda x: 2 ** x, range(terms))) print("The total terms are:",terms) for i in range(terms): print("2 raised to power",i,"is",result[i]) ``` **输出** ```py The total terms are: 10 2 raised to power 0 is 1 2 raised to power 1 is 2 2 raised to power 2 is 4 2 raised to power 3 is 8 2 raised to power 4 is 16 2 raised to power 5 is 32 2 raised to power 6 is 64 2 raised to power 7 is 128 2 raised to power 8 is 256 2 raised to power 9 is 512 ``` **注意**：要测试不同数量的项，请更改`terms`变量的值。