layer = int (input ("输入行数: ")) for i in range(1, layer+1): print(" "* (layer - i), end="") print("*"* (2*i - 1)) input()
时间: 2024-05-29 08:10:30 浏览: 15
This is a Python code that prompts the user to input the number of rows they want to print and then prints a pyramid of asterisks with the given number of rows. Here's a breakdown of how it works:
- The first line of code prompts the user to input the number of rows they want to print and saves it to the variable "layer".
- The "for" loop iterates from 1 to "layer-1" (inclusive) because the first row of the pyramid has only one asterisk and is printed outside the loop.
- The first line inside the loop prints spaces before the asterisks to create the pyramid shape. The number of spaces printed is equal to "layer-i" (where "i" is the current iteration of the loop).
- The second line inside the loop prints the asterisks. The number of asterisks printed is equal to "2*i-1".
- Finally, the "input()" function at the end of the code is used to keep the output window open until the user presses Enter.
Overall, this code produces a simple and symmetric pyramid of asterisks that grows larger as the number of rows increases.
相关推荐
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)