forked from gjw199513/python100example
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathexample61.py
More file actions
42 lines (32 loc) · 833 Bytes
/
example61.py
File metadata and controls
42 lines (32 loc) · 833 Bytes
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
# -*- coding:utf-8 -*-
__author__ = 'gjw'
__time__ = '2018/1/10 0010 上午 11:07'
# 题目：打印出杨辉三角形（要求打印出10行如下图）。
if __name__ == '__main__':
a = []
for i in range(10):
a.append([])
for j in range(10):
a[i].append(0)
for i in range(10):
a[i][0] = 1
a[i][i] = 1
for i in range(2, 10):
for j in range(1, i):
a[i][j] = a[i-1][j-1] + a[i-1][j]
for i in range(10):
for j in range(i+1):
print(str(a[i][j]), end=" ")
print()
# 递归
print("我是递归方法")
n = 10
def lst(i, j):
if i == j or j == 1:
return 1
else:
return lst(i-1, j-1)+lst(i-1, j)
for i in range(1, n+1):
for j in range(1, i+1):
print(lst(i, j),end=" ")
print()