public static int byte2int(byte b) {

    int i = b & 0x07f;

    if (b < 0) {

        i |= 0x80;

    }

    return i;

}

//运行代码

function runEx(cod1)  {

     cod=document.getElementById(cod1)

      var code=cod.value;

      if (code!=""){

          var newwin=window.open('','','');

          newwin.opener = null

          newwin.document.write(code);

          newwin.document.close();

    }

}

//复制代码

function doCopy(ID) {

    if (document.all){

         textRange = document.getElementById(ID).createTextRange();

         textRange.execCommand("Copy");

    }

    else{

         //alert("此功能只能在IE上有效");

         copyToClipboard(document.getElementById(ID).value);

    }

}

//保存代码

function saveCode(cod1) {

    cod=document.getElementById(cod1)

    var code=cod.value;

    if (code!=""){

        var winname = window.open('', '_blank', 'top=10000');

        winname.document.open('text/html', 'replace');

        winname.document.write(code);

        winname.document.execCommand('saveas','','code.htm');

        winname.close();

    }

}