Add python additional sample

C#/STPWithClass/Program.cs

@@ -22,7 +22,7 @@ static void Main(string[] args)
                 case "show":
                     for (int i = 0; i < items.Count; i++)
                     {
-                        Console.WriteLine($"{i}:{items[i].GetIntroTxt()}円");
+                        Console.WriteLine($"{i}:{items[i].GetIntroTxt()}");
                     }
                     break;
                 case "buy":

Python/STP_with_class/main.py

@@ -0,0 +1,50 @@
+class Item:
+    def __init__(self,name,value):
+        self.name=name
+        self.value=value
+        self.count=0
+
+    def Buy(self):
+        self.count+=1
+
+    def GetAmountOfMoney(self):
+        return self.value*self.count
+
+    def GetIntroTxt(self):
+        return f"{self.name}:{self.value}円"
+
+def GetSum():
+    total=0
+    for item in items:
+        total+=item.GetAmountOfMoney()
+    return total
+
+def AddItem(cmds):
+    name=cmds[1]
+    value=int(cmds[2])
+    newItem=Item(name,value)
+    items.append(newItem)
+    print(f"{value}円の{name}を登録しました")
+
+def CheckOut():
+    for item in items:
+        print(item.GetIntroTxt()+f"*{item.count}")
+    print(f"合計金額:{GetSum()}円")
+
+items=[]
+while True:
+    cmd=input()
+    cmds=cmd.split(" ")
+    if cmds[0]=="exit":
+        break
+    elif cmds[0]=="add":
+        AddItem(cmds)
+    elif cmds[0]=="show":
+        for i,item in enumerate(items):
+            print(f"{i}:{item.GetIntroTxt()}")
+    elif cmds[0]=="buy":
+        targetindex=int(cmds[1])
+        print(f"{items[targetindex].name}を一個購入しました")
+        items[targetindex].Buy()
+    elif "checkout":
+        CheckOut()

Python/STP_without_class/main.py

@@ -13,18 +13,18 @@
         item_names.append(name)
         item_values.append(value)
         item_counts.append(0)
-        print('{}円の{}を登録しました'.format(value, name))
+        print(f'{value}円の{name}を登録しました')
     if cmds[0] == 'show':
         for i in range(len(item_names)):
-            print('{}:{}:{}円'.format(i, item_names[i], item_values[i]))
+            print(f'{i}:{item_names[i]}:{item_values[i]}円')
     if cmds[0] == 'buy':
         target_index = int(cmds[1])
         item_counts[target_index] += 1
-        print('{}を購入しました'.format(item_names[target_index]))
+        print(f'{item_names[target_index]}を購入しました')
     if cmds[0] == 'checkout':
-        sum = 0
+        total = 0
         for i in range(len(item_names)):
-            sum += item_values[i] * item_counts[i]
-            print('{} {}円×{}'.format(item_names[i], item_values[i], item_counts[i]))
+            total += item_values[i] * item_counts[i]
+            print(f'{item_names[i]} {item_values[i]}円×{item_counts[i]}')
             item_counts[i] = 0
-        print('合計金額:{}円'.format(sum))
+        print(f'合計金額:{total}円')