save project

diy.py

@@ -3,5 +3,10 @@
 # 省略繁杂情节，刘关张三人一起冲入战场，围攻吕布：
 a=['吕布']
 b=['袁术','公孙瓒','关羽','张飞','刘备','曹操']
-
-
+# print(b[:])
+# print(b[1:4])
+# print(b[1:])
+#print(b[:4])
+w=b[2:5]
+a.extend(w)
+print(a)
\ No newline at end of file