javascript计算器(6) if (keyCode>=48 && keyCode<=57) { if (FlagNewNum) { FKeyPad.ReadOut.value = ""; //window.event.keyCode = null; FlagNewNum = false; } return true; }else if (keyCode==43 keyCode==45 keyCode==42 keyCode==47 keyCode==61) { Operation(String.fromCharCode(keyCode)); }else if (keyCode==46) {//. if (FKeyPad.ReadOut.value.indexOf(".") == -1) return true; }else if (keyCode==13) goReturn(); window.event.returnValue = false; return false;}// End --></SCRIPT></body></html>