save project

diy2.py

 bros = ["刘","关","张"]
 bros = ["刘","关","张"]
 bros[1] = "刘"
 bros[1] = "刘"
 bros[0] = "关"
 bros[0] = "关"
+#bros.pop(2)
+
+bros.insert(2,"a")
+bros.append("b")
+a = ["c","d"]
+bros.extend(a)
+b = bros[4:]
+c = b.insert(0,"a")
+print(c)
 print(bros)
 print(bros)
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