35 lines
602 B
Python
35 lines
602 B
Python
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"""
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输出10行的杨辉三角 - 二项式的n次方展开系数
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1
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1 1
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1 2 1
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1 3 3 1
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1 4 6 4 1
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... ... ...
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Version: 0.1
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Author: 骆昊
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Date: 2018-03-06
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"""
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def main():
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num = int(input('Number of rows: '))
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yh = [[]] * num
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for row in range(len(yh)):
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yh[row] = [None] * (row + 1)
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for col in range(len(yh[row])):
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if col == 0 or col == row:
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yh[row][col] = 1
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else:
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yh[row][col] = yh[row - 1][col] + yh[row - 1][col - 1]
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print(yh[row][col], end='\t')
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print()
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if __name__ == '__main__':
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main()
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