Add ch05 lecture notes for SMU

Author: yunho0130

.DS_Store

@@ -0,0 +1,52 @@
+# -*- coding: utf-8 -*-
+"""
+Created on Thu Jan 05 07:21:40 2017
+
+@author: Yunho
+"""
+
+# -*- coding: utf-8 -*-
+"""
+Created on Sat Dec 24 12:39:11 2016
+@author: Yunho
+"""
+import sys
+
+#print sys.argv[0] # prints python_script.py
+#print sys.argv[1] # prints var1
+#print sys.argv[2] # prints var2
+print "ver 2.0"
+
+
+
+def tree_maker(initial_num, increasing_tree, tree_space):
+    shape = "*"
+    space = " "
+    space_num = initial_num
+    initial_num = initial_num*2 -1
+    print space * (2+tree_space - space_num) + shape * initial_num
+    initial_num += increasing_tree
+    print space * (1+tree_space - space_num) + shape * initial_num
+    initial_num += increasing_tree
+    print space * (0+tree_space - space_num) + shape * initial_num
+    
+def pot_maker():
+    """Draw pot
+    
+    this is default function of tree"""
+    pass
+    
+def main():
+    """This is main function
+    
+    You can draw christmas tree using this module"""
+#    help(tree_maker)
+#    help(pot_maker)
+    level_of_tree = int(sys.argv[1])
+    tree_space = level_of_tree+5
+    level_of_tree += 1
+    for i in range(1,level_of_tree):
+        tree_maker(i, 2, tree_space)
+    
+if __name__ == "__main__":
+    main()