打印杨辉三角形，杨辉三角形,[Python]代码Py

打印杨辉三角形，杨辉三角形,[Python]代码Py

[Python]代码

Python语言: python.打印杨辉三角形# -*- coding: utf-8 -*-# 打印杨辉三角形# 编程语言 : python 2.5if __name__ == '__main__':    a = []    # 10 层次    k = 10    for i in range(k):        a.append([])        for j in range(k):            a[i].append(0)    for i in range(k):        a[i][0] = 1        a[i][i] = 1    for i in range(2,k):        for j in range(1,i):            a[i][j] = a[i - 1][j-1] + a[i - 1][j]    from sys import stdout    for i in range(k):        for j in range(i + 1):            stdout.write(a[i][j])            stdout.write(' ')        print