YouTipPython Exercise Example61
# Python2.x Python Exercise Instance 61
[ Python 100 Examples](#)
**Title:** Print the Yang Hui triangle (requires printing 10 lines as shown below).
**Program Analysis:** None.
Program source code:
## Instance
#!/usr/bin/python# -*- coding: UTF-8 -*-if __name__ == ' __main__ ': a = []for i in range(10): a.append([])for j in range(10): a.append(0)for i in range(10): a = 1 a = 1 for i in range(2,10): for j in range(1,i): a = a + afrom sys import stdout for i in range(10): for j in