更新

Python-100-Days/Day01-15/Day07/yanghui.py

@@ -0,0 +1,34 @@
+"""
+
+输出10行的杨辉三角 - 二项式的n次方展开系数
+1
+1 1
+1 2 1
+1 3 3 1
+1 4 6 4 1
+... ... ...
+
+
+Version: 0.1
+Author: 骆昊
+Date: 2018-03-06
+
+"""
+
+
+def main():
+    num = int(input('Number of rows: '))
+    yh = [[]] * num
+    for row in range(len(yh)):
+        yh[row] = [None] * (row + 1)
+        for col in range(len(yh[row])):
+            if col == 0 or col == row:
+                yh[row][col] = 1
+            else:
+                yh[row][col] = yh[row - 1][col] + yh[row - 1][col - 1]
+            print(yh[row][col], end='\t')
+        print()
+
+
+if __name__ == '__main__':
+    main()