C# keypress事件问题 if ((e.KeyChar < 48 || e.KeyChar > 57) && e.KeyChar != 8) { e.Handled = true; } if (e.KeyChar == 8) { e.Handled = false; }当中的48、57、8各代表什么意思? 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 keycode 8 = BackSpacekeycode 9 = Tab Tabkeycode 12 = Clearkeycode 13 = Enterkeycode 16 = Shift_Lkeycode 17 = Control_Lkeycode 18 = Alt_Lkeycode 19 = Pausekeycode 20 = Caps_Lockkeycode 27 = Escape Escapekeycode 32 = space spacekeycode 33 = Priorkeycode 34 = Nextkeycode 35 = Endkeycode 36 = Homekeycode 37 = Leftkeycode 38 = Upkeycode 39 = Rightkeycode 40 = Downkeycode 41 = Selectkeycode 42 = Printkeycode 43 = Executekeycode 45 = Insertkeycode 46 = Deletekeycode 47 = Helpkeycode 48 = 0 equal bracerightkeycode 49 = 1 exclam onesuperiorkeycode 50 = 2 quotedbl twosuperiorkeycode 51 = 3 section threesuperiorkeycode 52 = 4 dollarkeycode 53 = 5 percentkeycode 54 = 6 ampersandkeycode 55 = 7 slash braceleftkeycode 56 = 8 parenleft bracketleftkeycode 57 = 9 parenright bracketrightkeycode 65 = a Akeycode 66 = b Bkeycode 67 = c Ckeycode 68 = d Dkeycode 69 = e E EuroSignkeycode 70 = f F...... 48~57是ascii码 分别对应键盘上的 0~9 键8 表示 空格键 也可以闲来没事,自己把键盘按一遍,你可以监视e.KeyChar就看到是什么值了。 winform问题,求解答! Java提供的.jar文件在c#.net下面可以调用吗? timer事件模拟鼠标操作问题?奇怪的问题 请问:单机环境下我能做B/S三级架构的实验吗? 关于数据类型的问题? 控制台应用程序有什么实际用处吗? 如何通过textbox实现向数据库的更新(update)操作 本人菜鸟求解 关于KindEditor上传图片错误问题 急问,把一个.net remoting项目做成window service,怎么在服务管理器里面启动service时,出现问题 请问网上哪有c#中英对照的文档或书籍 C# 实现API问题 如何让一个Form始终保持前端显示?
keycode 9 = Tab Tab
keycode 12 = Clear
keycode 13 = Enter
keycode 16 = Shift_L
keycode 17 = Control_L
keycode 18 = Alt_L
keycode 19 = Pause
keycode 20 = Caps_Lock
keycode 27 = Escape Escape
keycode 32 = space space
keycode 33 = Prior
keycode 34 = Next
keycode 35 = End
keycode 36 = Home
keycode 37 = Left
keycode 38 = Up
keycode 39 = Right
keycode 40 = Down
keycode 41 = Select
keycode 42 = Print
keycode 43 = Execute
keycode 45 = Insert
keycode 46 = Delete
keycode 47 = Help
keycode 48 = 0 equal braceright
keycode 49 = 1 exclam onesuperior
keycode 50 = 2 quotedbl twosuperior
keycode 51 = 3 section threesuperior
keycode 52 = 4 dollar
keycode 53 = 5 percent
keycode 54 = 6 ampersand
keycode 55 = 7 slash braceleft
keycode 56 = 8 parenleft bracketleft
keycode 57 = 9 parenright bracketright
keycode 65 = a A
keycode 66 = b B
keycode 67 = c C
keycode 68 = d D
keycode 69 = e E EuroSign
keycode 70 = f F
......
8 表示 空格键