Merge pull request #51 from code4tomorrow/kehao-ch13problems

Added Vector class

Author: Citrus716

3_advanced/chapter13/examples/vector.py

@@ -0,0 +1,26 @@
+class Vector:
+    """
+    Constructor
+
+    self: a reference to the object we are creating
+    vals: a list of integers which are the contents of our vector
+    """
+
+    def __init__(self, vals):
+        self.vals = (
+            vals  # We're using the keyword self to create a field/property
+        )
+        print("Assigned values ", vals, " to vector.")
+
+    """
+    String Function
+ 
+    Converts the object to a string in readable format for programmers
+    """
+
+    def __str__(self):
+        return str(self.vals)  # Returns the contents of the vector
+
+
+vec = Vector([2, 3, 2])
+print(str(vec))  # [2, 3, 2]