菜单系统编程

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㈡ 怎样用C语言编写菜单

1. 对于窗口组件菜单，需要根据不同平台，通过图形编程接口，进行菜单的编制。

   例程：

   #include<stdio.h>
   #include<graphics.h>
   #include<conio.h>
   voidmain()
   {
   charstr;
   inti,k,choice=1;
   intgd=DETECT,gm;
   initgraph(&gd,&gm,"");
   setbkcolor(2);
   settextstyle(3,0,3);
   outtextxy(140,120,"A.TheMockClock.");
   outtextxy(140,150,"B.TheDigitalClock.");
   outtextxy(140,180,"C.Exit.");
   setlinestyle(0,0,3);
   rectangle(170,115,370,145);
   /*按上下键选择所需选项*/
   for(i=1;i<=100;i++)
   {
   str=getch();
   if(str==72)
   {
   --choice;
   if(choice==0)choice=3;
   }
   if(str==80)
   {
   ++choice;
   if(choice==4)choice=1;
   }
   if(str==13)break;／＊按回车键确认＊／
   /*画图做菜单*/
   cleardevice();
   switch(choice)
   {case1:setlinestyle(0,0,3);
   rectangle(170,115,400,145);
   settextstyle(3,0,3);
   outtextxy(140,120,"A.TheMockClock.");
   settextstyle(3,0,3);
   outtextxy(140,150,"B.TheDigitalClock.");
   outtextxy(140,180,"C.Exit.");
   break;
   case2:setlinestyle(0,0,3);
   rectangle(170,145,400,175);
   settextstyle(3,0,3);
   outtextxy(140,120,"A.TheMockClock.");
   settextstyle(3,0,3);
   outtextxy(140,150,"B.TheDigitalClock.");
   settextstyle(3,0,3);
   outtextxy(140,180,"C.Exit.");
   break;
   case3:settextstyle(3,0,3);
   outtextxy(140,120,"A.TheMockClock.");
   outtextxy(140,150,"B.TheDigitalClock.");
   settextstyle(3,0,3);
   outtextxy(140,180,"C.Exit.");
   setlinestyle(0,0,3);
   rectangle(170,175,400,205);
   break;
   }
   }
   if(i>=100)exit(0);／＊如果按键超过100次退出＊／
   switch(choice)/*这里引用函数，实现所要的功能*/
   {
   case1:cleardevice();
   setbkcolor(4);
   settextstyle(3,0,4);
   outtextxy(160,120,"No.1havenotbuilt.");break;
   case2:cleardevice();
   setbkcolor(4);
   settextstyle(3,0,4);
   outtextxy(160,150,"No.2havenotbuilt.");
   break;
   case3:exit(0);
   }
   getch();
   closegraph();
   }

2. 对于命令行菜单，直接通过不断刷新输出来模拟菜单行为。

   例程：

   #include<stdio.h>
   #include<stdlib.h>
   #include<string.h>
   intn,t,k;
   intm;
   chars1[20],s2[20],c;
   char**l;
   char*num[]={"one","two","three","four","five","six","seven","eight","nine","ten"};
   voidmenu()
   {
   printf("
   
   		*******************************************************
   ");
   printf("		**1.查找字符串S1中S2出现的次数**
   ");
   printf("		**2.统计字符串中大小写字母，数字出现的次数**
   ");
   printf("		**3.将数字翻译成英语**
   ");
   printf("		**4.结束**
   ");
   printf("		*******************************************************
   ");
   printf("		您的输入：");
   fflush(stdin);
   scanf("%d",&n);
   }
   voidcheck()
   {
   
   chara[20],b[20];
   intj=0,k,m,l=0;
   intt=0,n=0;
   printf("请输入主字符串：
   ");
   scanf("%s",a);
   k=strlen(a);
   printf("请输入子字符串：
   ");
   scanf("%s",b);
   m=strlen(b);
   for(n=0;n<k;n++)
   if(a[n]==b[0])
   {
   j++;/*记录相同的字符数*/
   do
   {
   if(a[++n]==b[++t])
   {
   j++;
   if(j==m)
   {
   l++;/*子字符串相同数*/
   j=0;/*判断后相同字符数归零*/
   t=-1;/*判断中if中++t;t将会归零*/
   }
   }
   else
   {
   j=0;
   t=0;
   break;/*如果不同跳出while循环让for使n+1继续判断*/
   }
   }while(a[n]!='');/*查找完字符数组a结束*/
   }
   printf("子字符串出现次数：
   %d
   ",l);
   }
   voidcout()
   {
   intn=0,t=0,k=0;
   printf("请输入一个字符串：
   ");
   fflush(stdin);/*清除缓冲*/
   while((c=getchar())!='
   ')
   {
   if(c>='a'&&c<='z')
   n++;
   if(c>='A'&&c<='Z')
   t++;
   if(c>='0'&&c<='9')
   k++;
   }
   printf("有大写字母：
   %d
   ",t);
   printf("有小写字母：
   %d
   ",n);
   printf("有数字：
   %d
   ",k);
   }
   voidnumber()
   {
   l=num;
   printf("请输入一个数字：(0-10)
   ");
   fflush(stdin);
   scanf("%d",&m);
   printf("%d对应的英文是：
   %s
   ",m,*(l+m-1));
   }
   voidmain()
   {
   while(1)
   {
   system("cls");
   menu();
   switch(n)
   {
   case1:system("cls");check();system("pause");break;
   case2:system("cls");cout();system("pause");break;
   case3:system("cls");number();system("pause");break;
   case4:system("cls");break;
   default:system("cls");break;
   }
   if(n==4)break;
   }
   printf("感谢使用
   ");
   }

㈢ python gui编程，我是初学者。用tk，制作下拉菜单的command不分我想打开另一个界面。如和解决，求解！！

from tkinter import *

def new_file():
print("Open new file")

def open_file():
print("Open existing file")

def stub_action():
print("Menu select")

def makeCommandMenu():
CmdBtn = Menubutton(mBar, text='Button Commands', underline=0)
CmdBtn.pack(side=LEFT, padx="2m")
CmdBtn.menu = Menu(CmdBtn)

CmdBtn.menu.add_command(label="Undo")
CmdBtn.menu.entryconfig(0, state=DISABLED)

CmdBtn.menu.add_command(label='New...', underline=0, command=new_file)
CmdBtn.menu.add_command(label='Open...', underline=0, command=open_file)
CmdBtn.menu.add_command(label='Wild Font', underline=0,
font=('Tempus Sans ITC', 14), command=stub_action)
#CmdBtn.menu.add_command(bitmap="@bitmaps/RotateLeft")
CmdBtn.menu.add('separator')
CmdBtn.menu.add_command(label='Quit', underline=0,
background='white', activebackground='green',
command=CmdBtn.quit)

CmdBtn['menu'] = CmdBtn.menu
return CmdBtn

def makeCascadeMenu():
CasBtn = Menubutton(mBar, text='Cascading Menus', underline=0)
CasBtn.pack(side=LEFT, padx="2m")
CasBtn.menu = Menu(CasBtn)
CasBtn.menu.choices = Menu(CasBtn.menu)
CasBtn.menu.choices.wierdones = Menu(CasBtn.menu.choices)

CasBtn.menu.choices.wierdones.add_command(label='A')
CasBtn.menu.choices.wierdones.add_command(label='B')
CasBtn.menu.choices.wierdones.add_command(label='C')
CasBtn.menu.choices.wierdones.add_command(label='D')

CasBtn.menu.choices.add_command(label='A')
CasBtn.menu.choices.add_command(label='B')
CasBtn.menu.choices.add_command(label='C')
CasBtn.menu.choices.add_command(label='D')
CasBtn.menu.choices.add_command(label='E')
CasBtn.menu.choices.add_command(label='F')
CasBtn.menu.choices.add_cascade(label='G',
menu=CasBtn.menu.choices.wierdones)

CasBtn.menu.add_cascade(label='Scipts', menu=CasBtn.menu.choices)
CasBtn['menu'] = CasBtn.menu
return CasBtn

def makeCheckbuttonMenu():
ChkBtn = Menubutton(mBar, text='Checkbutton Menus', underline=0)
ChkBtn.pack(side=LEFT, padx='2m')
ChkBtn.menu = Menu(ChkBtn)

ChkBtn.menu.add_checkbutton(label='A')
ChkBtn.menu.add_checkbutton(label='B')
ChkBtn.menu.add_checkbutton(label="C")
ChkBtn.menu.add_checkbutton(label='D')
ChkBtn.menu.add_checkbutton(label='E')
ChkBtn.menu.invoke(ChkBtn.menu.index('C'))

ChkBtn['menu'] = ChkBtn.menu
return ChkBtn

def makeRadiobuttonMenu():
RadBtn = Menubutton(mBar, text='Radiobutton Menus', underline=0)
RadBtn.pack(side=LEFT, padx='2m')
RadBtn.menu = Menu(RadBtn)

RadBtn.menu.add_radiobutton(label='A')
RadBtn.menu.add_radiobutton(label='B')
RadBtn.menu.add_radiobutton(label='C')
RadBtn.menu.add_radiobutton(label='D')
RadBtn.menu.add_radiobutton(label='E')
RadBtn.menu.add_radiobutton(label='F')
RadBtn.menu.add_radiobutton(label='G')
RadBtn.menu.add_radiobutton(label='H')
RadBtn.menu.add_radiobutton(label='I')

RadBtn['menu'] = RadBtn.menu
return RadBtn

def makeDisabledMenu():
Dummy_button = Menubutton(mBar, text='Disabled Menu', underline=0)
Dummy_button.pack(side=LEFT, padx='2m')
Dummy_button["state"] = DISABLED
return Dummy_button

root = Tk()
mBar = Frame(root, relief=RAISED, borderwidth=2)
mBar.pack(fill=X)

CmdBtn = makeCommandMenu()
CasBtn = makeCascadeMenu()
ChkBtn = makeCheckbuttonMenu()
RadBtn = makeRadiobuttonMenu()
NoMenu = makeDisabledMenu()

mBar.tk_menuBar(CmdBtn, CasBtn, ChkBtn, RadBtn, NoMenu)

root.title('Menus')
root.mainloop()