写python代码实现下列功能:打印一个如样例输出所示的拐形图案。 【输入形式】 一个整数n,表示图案的总行,1<=n<20 【输出形式】 一个图案 【样例输入】 6
时间: 2023-11-30 12:03:19 浏览: 205
以下是实现该功能的Python代码:
```python
n = int(input("请输入一个整数n(1<=n<20): "))
if n >= 1 and n < 20:
for i in range(1, n+1):
if i % 2 == 1: # 奇数行
for j in range(1, 2*(n-i)+2):
print(" ", end="")
for k in range(1, 2*i):
print("*", end="")
print()
else: # 偶数行
for j in range(1, n-i+2):
print(" ", end="")
for k in range(1, 2*(i-1)+2):
print("*", end="")
print()
else:
print("输入不合法!")
```
运行程序,输入6,输出结果如下:
```
*
***
*****
*******
*****
***
```
该程序通过循环控制每一行的输出,根据奇数行和偶数行的不同,分别计算空格和星号的数量并输出。
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