Clear all values from specify TreeNode.
void tree_clear_all_value( TreeNode & tr )
EX1
void tree_clear_all_value_ex1() { Tree tr; tr.Math.Score.dVal = 90.5; tr.Math.Bookname.strVal = "Advanced Math"; tr.English.Score.dVal = 95.5; tr.English.Bookname.strVal = "English 1"; tree_clear_all_value(tr); out_tree(tr); }
origin.h