idk why these stuffs get stashed for so long and I didn't ever commit them

OrigFiles/2-1/main.cpp

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+#include<iostream>     //cout,cin
+using namespace std;
+#include "LinkList.h"
+
+
+void dispmenu()
+{															// 显示主菜单
+	cout<<endl;
+	cout<<" 1-初始化顺序表\n";
+	cout<<" 2-尾插法顺序表\n";
+	cout<<" 3-头插法建表\n";
+	cout<<" 4-获取第i个元素\n";
+	cout<<" 5-按值查找\n";
+	cout<<" 6-插入第i个元素\n";
+	cout<<" 7-删除第i个元素\n";
+	cout<<" 8-修改第i个元素\n";
+	cout<<" 9-清空表\n";
+	cout<<"10-测表长\n";
+	cout<<"11-测表空\n";
+	cout<<"12-遍历输出\n";
+	cout<<"13-退出\n";
+}
+
+char pause;
+
+															// 主函数
+int main()
+{
+	int i,n;
+	int e;
+	LNode<int> * L;
+	system("cls");							// 清屏
+	int choice;
+    do
+	{
+		dispmenu();											// 显示主菜单
+		cout<<"Enter choice(1~12):";
+		cin>>choice;
+		switch(choice)
+		{
+			case 1:											// 初始化单链表
+				InitList(L);
+				cout<<endl<<"创建成功！"<<endl;
+				break;
+		     case 2:										// 尾插法建单链表
+				cout<<"尾插法创建单链表"<<endl;
+				cout<<"输入要创建的顺序表中元素个数:";
+				cin>>n;
+				cout<<endl;
+				CreateList_1(L,n);
+				cout<<"创建的单链表为：";
+				DispList(L);
+				cout<<endl;
+				break;
+			case 3:											// 头插法创建单链表
+				cout<<"头插法创建单链表"<<endl;
+				cout<<"输入要创建的顺序表中元素个数:";
+				cin>>n;
+				cout<<endl;
+				CreateList_2(L,n);
+				cout<<"创建的单链表为：";
+				DispList(L);
+				cout<<endl;
+				break;
+			 case 4:										// 获取第i个元素
+				cout<<"请输入元素序号:";
+				cin>>i;
+				cout<<endl;
+				if (GetElem_i(L,i, e))
+					cout<<endl<<"第"<<i<<"个元素为:"<<e<<endl;
+				else
+					cout<<endl<<"元素不存在！"<<endl;
+				break;
+			 case 5:										// 查询元素位序
+                 cout<<"请输入要查询的元素值:";
+				 cin>>e;
+				 i=LocateElem_e(L, e);
+				 if(i)
+					 cout<<endl<<e<<"是第"<<i<<"个数据元素"<<endl;
+				 else
+					 cout<<endl<<"不存在此元素！"<<endl;
+				 break;
+			 case 6:										// 插入第i个元素
+				 cout<<"输入插入位置："<<endl;
+				 cin>>i;
+				 cout<<"输入插入元素值："<<endl;
+                 cin>>e;
+				 if(InsertElem_i(L,i,e))
+				 {
+					 cout<<endl<<"插入成功！"<<endl;
+					 cout<<"插入元素后的单链表为："<<endl;
+				     DispList(L);
+				 }
+				 else
+					 cout<<endl<<"插入不成功！"<<endl;
+				 break;
+			 case 7:										// 删除第i个元素
+				 cout<<"输入删除元素位置："<<endl;
+				 cin>>i;
+				 if(DeleElem_i(L,i))
+				 {
+					 cout<<endl<<"删除成功！"<<endl;
+					 cout<<"删除元素后的单链表为："<<endl;
+				     DispList(L);
+				 }
+				 else
+					 cout<<endl<<"删除失败！"<<endl;
+				 break;
+			 case 8:										// 修改第i个元素
+				 cout<<"输入修改元素位置："<<endl;
+				 cin>>i;
+				 cout<<"输入新元素值："<<endl;
+                 cin>>e;
+				 if(PutElem_i(L,i,e))
+				 {
+					 cout<<endl<<"修改成功！"<<endl;
+					 cout<<"修改后的单链表为："<<endl;
+				     DispList(L);
+				 }
+				 else
+                     cout<<endl<<"修改失败！"<<endl;
+				 break;
+			 case 9:										// 清空表
+				 ClearList(L);
+				 break;
+             case 10:										// 测表长
+				 cout<<"表长为："<<ListLength(L)<<endl;
+				 break;
+			 case 11:										// 测表空
+				 if(ListEmpty(L))
+					 cout<<endl<<"空表！"<<endl;
+				 else
+					 cout<<endl<<"不是空表！"<<endl;
+				 break;
+			case 12:										//遍历显示表
+				DispList(L);
+				cout<<endl;
+				cin.get(pause);
+				system("pause");
+				break;
+  			case 13:										//退出，销毁链表
+                DestroyList(L);
+				cout<<"结束运行"<<endl;
+                break;
+			default:										//非法选择
+				cout<<"Invalid choice\n";
+				break;
+			}
+	}while(choice!=13);
+	return 0;
+}//end of main function