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+#author：20191219雷天荣
+#file name：任务（1）
+#time：2021.3.29
+#定义列表
+list = ["坦克","战士","刺客","法师","射手","辅助"]
+#遍历
+for item in list:
+     print("英雄：",item)
+#增加
+list.append("亚瑟")
+print(list)
+#删除
+list.remove("射手")
+print(list)
+#修改
+list[0] = "猴子"
+print(list)