jquery实现页面虚拟键盘特效

用法简介：

jquery页面虚拟键盘设计带有数字与字母切换功能。

文件引用：

//给输入的密码框添加新值
function addValue(newValue)
{
  CapsLockValue==0?$(".input_cur").val($(".shuru").val()+ newValue):$(".input_cur").val($(".shuru").val()+ newValue.toUpperCase())
}
//清空
function clearValue()
{
  $(".input_cur").val("");
}
//实现BackSpace键的功能
function backspace()
{
  var longnum=$(".input_cur").val().length;
  var num ;
  num=$(".input_cur").val().substr(0,longnum-1);
  $(".input_cur").val(num);
}
function changePanl(oj){
  $("#"+oj).siblings("div").hide();
  $("#"+oj).show();
}
//设置是否大写的值
function setCapsLock(o)
{
   if (CapsLockValue==0){
       CapsLockValue=1;
      $(o).val("转化小写");
      $.each($(".i_button_zm"),function(b, c) {
       $(c).val($(c).val().toUpperCase());
      });
   }else{
       CapsLockValue=0;
      $(o).val("转化大写");
      $.each($(".i_button_zm"),function(b, c) {
       $(c).val($(c).val().toLowerCase());
      });
   }
}
window.onload=function(){
// changePanl("zimu");
}

CSS

.softkeyboard{ display:inline-block;}
.softkeyboard td{ padding:4px;}
.c_panel{ background-color:#333; text-align:center; padding:15px;}
.input_cur{ border:1px solid #f00;}
.i_button{ border:none; height:40px; width:50px; font-size:16px; font-family:"微软雅黑"; background-color:#666; color:#fff;}
.i_button:active{ background-color:#999;}
.i_button_num{}
.i_button_btn{ float:right; width:88px;}
.i_button_bs{ float:right; width:148px;}

HTML

<input type="text" name="text1" class="shuru input_cur" ><br>
<script>
//定义当前是否大写的状态
var CapsLockValue=0;
var curEditName;
var check;
//document.write (' <DIV align=center id=\"softkeyboard\" name=\"softkeyboard\" style=\"position:absolute; left:300px; top:320px; width:517px; z-index:180;display:none\">');
document.write (' <DIV class=\"softkeyboard\" id=\"softkeyboard\" name=\"softkeyboard\" style=\"display:; \">');
//document.write (' ------数字----');
document.write (' <div class=\"c_panel shuzi\" id="shuzi">');
document.write ('<table align=\"center\" width=\"100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">');
document.write (' <tr> ');
document.write (' <td><input class="i_button i_button_num" type=button onclick=\"addValue(\'7\');\" value=\" 7 \"></td>');
document.write (' <td><input class="i_button i_button_num" type=button onclick=\"addValue(\'8\');\" value=\" 8 \"></td>');
document.write (' <td><input class="i_button i_button_num" type=button onclick=\"addValue(\'9\');\" value=\" 9 \"></td>');
document.write (' <td><input class="i_button i_button_btn i_button_sz" onclick=\"changePanl(\'zimu\');\" type=button value=符号 ></td>');
document.write (' </tr>');
document.write (' <tr> ');
document.write (' <td><input class="i_button i_button_num" type=button onclick=\"addValue(\'4\');\" value=\" 4 \"></td>');
document.write (' <td><input class="i_button i_button_num" type=button onclick=\"addValue(\'5\');\" value=\" 5 \"></td>');
document.write (' <td><input class="i_button i_button_num" type=button onclick=\"addValue(\'6\');\" value=\" 6 \"></td>');
document.write (' <td><input class="i_button i_button_btn i_button_sz" onclick=\"changePanl(\'zimu\');\" type=button value=字母></td>');
document.write (' </tr>');
document.write (' <tr> ');
document.write (' <td><input class="i_button i_button_num" type=button onclick=\"addValue(\'1\');\" value=\" 1 \"></td>');
document.write (' <td><input class="i_button i_button_num" type=button onclick=\"addValue(\'2\');\" value=\" 2 \"></td>');
document.write (' <td><input class="i_button i_button_num" type=button onclick=\"addValue(\'3\');\" value=\" 3 \"></td>');
document.write (' <td><input class="i_button i_button_btn" type=button onclick=\"clearValue();\" value=清空 ></td>');
document.write (' </tr>');
document.write (' <tr> ');
document.write (' <td><input class="i_button i_button_num" type=button onclick=\"addValue(\'0\');\" value=\" 0 \"></td>');
document.write (' <td></td>');
document.write (' <td colspan=2><input class="i_button i_button_bs" type=button value=\" BackSpace\" onclick=\"backspace();\"></td>');
document.write (' </tr>');
document.write (' </table>');
document.write ('</DIV>');
//document.write ('--------------------------------------------');
//document.write (' ------字母----');
document.write (' <div class=\"c_panel zimu\" id=\"zimu\" style=\"display:none;\">');
document.write (' <table align=\"center\" width=\"98%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">');
document.write (' <tr> ');
document.write (' <td><input class="i_button i_button_fh" type=button onclick=\"addValue(\'~\');\" value=\" ~ \"></td>');
document.write (' <td><input class="i_button i_button_fh" type=button onclick=\"addValue(\'!\');\" value=\" ! \"></td>');
document.write (' <td><input class="i_button i_button_fh" type=button onclick=\"addValue(\'@\');\" value=\" @ \"></td>');
document.write (' <td><input class="i_button i_button_fh" type=button onclick=\"addValue(\'#\');\" value=\" # \"></td>');
document.write (' <td><input class="i_button i_button_fh" type=button onclick=\"addValue(\'$\');\" value=\" $ \"></td>');
document.write (' <td><input class="i_button i_button_fh" type=button onclick=\"addValue(\'%\');\" value=\" % \"></td>');
document.write (' <td><input class="i_button i_button_fh" type=button onclick=\"addValue(\'^\');\" value=\" ^ \"></td>');
document.write (' <td><input class="i_button i_button_fh" type=button onclick=\"addValue(\'*\');\" value=\" * \"></td>');
document.write (' <td><input class="i_button i_button_fh" type=button onclick=\"addValue(\'(\');\" value=\" ( \"></td>');
document.write (' <td><input class="i_button i_button_fh" type=button onclick=\"addValue(\')\');\" value=\" ) \"></td>');
document.write (' <td><input class="i_button i_button_fh" type=button onclick=\"addValue(\'-\');\" value=\" - \"></td>');
document.write (' <td><input class="i_button i_button_fh" type=button onclick=\"addValue(\'+\');\" value=\" + \"></td>');
document.write (' <td><input class="i_button i_button_fh" type=button onclick=\"addValue(\'=\');\" value=\" = \"></td>');
document.write (' <td><input class="i_button i_button_btn" type=button onclick=\"changePanl(\'shuzi\');\" value=\"切换数字\"></td>');
document.write (' </tr>');
document.write (' <tr> ');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'q\');\" value=\" q \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'w\');\" value=\" w \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'e\');\" value=\" e \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'r\');\" value=\" r \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'t\');\" value=\" t \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'y\');\" value=\" y \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'u\');\" value=\" u \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'i\');\" value=\" i \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'o\');\" value=\" o \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'p\');\" value=\" p \"></td>');
document.write (' <td><input class="i_button i_button_fh" type=button onClick=\"addValue(\'[\');\" value=\" [ \"></td>');
document.write (' <td><input class="i_button i_button_fh" type=button onClick=\"addValue(\']\');\" value=\" ] \"></td>');
document.write (' <td><input class="i_button i_button_fh" type=button onClick=\"addValue(\'{\');\" value=\" { \"></td>');
document.write (' <td><input class="i_button i_button_btn" type=button onClick=\"setCapsLock(this);\" value=\"切换大写\"></td>');
document.write (' </tr>');
document.write (' <tr> ');
document.write (' <td><input class="i_button i_button_fh" type=button onClick=\"addValue(\'|\');\" value=\" | \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'a\');\" value=\" a \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'s\');\" value=\" s \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'d\');\" value=\" d \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'f\');\" value=\" f \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'g\');\" value=\" g \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'h\');\" value=\" h \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'j\');\" value=\" j \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'k\');\" value=\" k \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'l\');\" value=\" l \"></td>');
document.write (' <td><input class="i_button i_button_fh" type=button onclick=\"addValue(\';\');\" value=\" ; \"></td>');
document.write (' <td><input class="i_button i_button_fh" type=button onclick=\"addValue(\':\');\" value=\" : \"></td>');
document.write (' <td><input class="i_button i_button_fh" type=button onClick=\"addValue(\'}\');\" value=\" } \"></td>');
document.write (' <td><input class="i_button i_button_btn" type=button onclick=\"clearValue();\" value=清空 ></td>');
document.write (' </tr>');
document.write (' <tr> ');
document.write (' <td><input class="i_button i_button_fh" type=button onclick=\"addValue(\'_\');\" value=\" _ \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'z\');\" value=\" z \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'x\');\" value=\" x \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'c\');\" value=\" c \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'v\');\" value=\" v \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'b\');\" value=\" b \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'n\');\" value=\" n \"></td>');
document.write (' <td><input class="i_button i_button_zm" type=button onclick=\"addValue(\'m\');\" value=\" m \"></td>');
document.write (' <td><input class="i_button i_button_fh" type=button onClick=\"addValue(\'<\');\" value=\" < \"></td>');
document.write (' <td><input class="i_button i_button_fh" type=button onClick=\"addValue(\'>\');\" value=\" > \"></td>');
document.write (' <td><input class="i_button i_button_fh" type=button onClick=\"addValue(\'/\');\" value=\" / \"></td>');
document.write (' <td><input class="i_button i_button_fh" type=button onClick=\"addValue(\'?\');\" value=\" ? \"></td>');
document.write (' <td colspan=2><input class="i_button i_button_bs" type=button value=\" BackSpace\" onclick=\"backspace();\"></td>');
document.write (' </tr>');
document.write (' </table>');
document.write (' </div>');
//document.write ('--------------------------------------------');
document.write ('</DIV>');
//给输入的密码框添加新值
function addValue(newValue)
{
 CapsLockValue==0?$(".input_cur").val($(".shuru").val()+ newValue):$(".input_cur").val($(".shuru").val()+ newValue.toUpperCase())
}
//清空
function clearValue()
{
 $(".input_cur").val("");
}
//实现BackSpace键的功能
function backspace()
{
 var longnum=$(".input_cur").val().length;
 var num ;
 num=$(".input_cur").val().substr(0,longnum-1);
 $(".input_cur").val(num);
}
function changePanl(oj){
 $("#"+oj).siblings("div").hide();
 $("#"+oj).show();
}
//设置是否大写的值
function setCapsLock(o)
{
  if (CapsLockValue==0){
   CapsLockValue=1;
  $(o).val("转化小写");
  $.each($(".i_button_zm"),function(b, c) {
   $(c).val($(c).val().toUpperCase());
  });
  }else{
   CapsLockValue=0;
  $(o).val("转化大写");
  $.each($(".i_button_zm"),function(b, c) {
   $(c).val($(c).val().toLowerCase());
  });
  }
}
window.onload=function(){
// changePanl("zimu");
}
</script>

演示效果：

屏幕键盘在网络生活中很常见，比如使用网银或在线查询信用卡余额，在输入密码等敏感数据时，应该就会用到屏幕键盘。以防止被木马或恶意程序捕获盗取实际键盘上的操作。希望本文能够对大家有所帮助。