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_advance/main.py

@@ -0,0 +1,100 @@
+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"
+
+class Cart:
+    def __init__(self):
+        self.items=[]
+        self.item_names=[]
+
+    def GetSum(self):
+        total=0
+        for item in self.items:
+            total+=item.GetAmountOfMoney()
+        return total
+
+    def AddItem(self,cmds):
+        if not cmds[2].isdecimal():
+            return "3つ目には価格を入れてください"
+        if cmds[1] in self.item_names:
+            return "既にその名前のアイテムが存在します"
+        name=cmds[1]
+        value=int(cmds[2])
+        newItem=Item(name,value)
+        self.item_names.append(name)
+        self.items.append(newItem)
+        return f"{value}円の{name}を登録しました"
+
+    def CheckOut(self):
+        for item in self.items:
+            print(item.GetIntroTxt()+f"*{item.count}")
+        return f"合計金額:{self.GetSum()}円"
+
+    def Show(self):
+        if len(self.items)==0:
+            return "まだ何も登録していません"
+        ret=""
+        for i,item in enumerate(self.items):
+            ret+= f"{i}:{item.GetIntroTxt()}\n"
+        return ret
+
+    def Buy(self,cmd):
+        targetitem=self.SearchItem(cmd[1])
+        if targetitem==-1:
+            return "アイテムが見つかりませんでした"
+        targetitem.Buy()
+        return f"{targetitem.name}を一個購入しました"
+
+    def SearchItem(self,cmd):
+        for item in self.items:
+            if item.name==cmd:
+                return item
+        if cmd.isdecimal():
+            index=int(cmd)
+            if 0<=index<len(self.items):
+                return self.items[index]
+            else:
+                return -1
+        return -1
+
+
+
+def print_help():
+    print("exit:このプログラムを終了する")
+    print("add [name] [value]:新たな商品nameをvalue円で登録する")
+    print("show:今までに登録した賞品の一覧を出力")
+    print("buy [name/index]:指定した商品を購入、該当しない場合は何も起こらない")
+    print("checkout:今まで購入した商品で会計を行い、合計金額などを出力")
+
+
+
+mycart=Cart()
+while True:
+    cmd=input("STP>")
+    cmds=cmd.split(" ")
+    if cmds[0]=="exit":
+        break
+    elif cmds[0]=="help":
+        print_help()
+    elif cmds[0]=="add":
+        print(mycart.AddItem(cmds))
+    elif cmds[0]=="show":
+        print(mycart.Show())
+    elif cmds[0]=="buy":
+        print(mycart.Buy(cmds))
+    elif cmds[0]=="checkout":
+        print(mycart.CheckOut())
+    else:
+        print("有効なコマンドを指定してください")
+        print("コマンド一覧はhelpで確認できます")

Python/STP_with_class/main.py

@@ -0,0 +1,51 @@
+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("STP>")
+    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')