???????? 站在用戶的角度來思考問題，用戶需要的永遠是方便、快捷的操作功能，所以有些時候自動記錄上次登陸成功的用戶名和密碼也就不可避免了。

???????? 以下代碼實現了這個功能，把上次登陸成功的用戶名和密碼記錄在RMS里，因為RMS是保存在ROM里的，具有斷電非易失性。

??????? private class TextForm extends Form implements CommandListener {
??????????? Command loginCom = new Command("登陸",Command.OK,0);
??????????? Command backCom = new Command("返回",Command.BACK,1);
??????????? int temp;
??????????? String Myname,Mypassword,s;
??????????? public TextForm(){
??????????????? super("登陸界面");
???????????????? try{
???????????????????? temp = rs.getNumRecords();
???????????????? }catch(Exception e){e.printStackTrace();}
??????????????? if(temp!=0){
??????????????????? try{
?????????????????????? s = decode(rs.getRecord(temp));
??????????????????? }catch(Exception e){e.printStackTrace();}
??????????????????? Myname = s.substring(0,s.indexOf("&"));
??????????????????? s = s.substring(s.indexOf("&")+1);
??????????????????? Mypassword = s;
??????????????????? userName = new TextField("?????? 用戶名 :",Myname,10,TextField.ANY);
??????????????????? passWord = new TextField("????????? 密碼 :",Mypassword,10,TextField.ANY);
??????????????? }else{
??????????????????? userName = new TextField("?????? 用戶名 :","",10,TextField.ANY);
??????????????????? passWord = new TextField("????????? 密碼 :","",10,TextField.ANY);
??????????????? }
??????????????? append(userName);
??????????????? append(passWord);
??????????????? addCommand(loginCom);
??????????????? addCommand(backCom);
??????????????? setCommandListener(this);
??????????????
??????????? }

??????????? public void commandAction(Command c, Displayable g) {
??????????????? if(c == loginCom){
??????????????????? if(userName.getString().length()!=0&&passWord.getString().length()!=0){
???????????????????????
?
???????????????????????
??????????????????????? setCommand("LogonAction",userName.getString()+"&"+passWord.getString());
??????????????????????? getCommand();
??????????????????????? try{
?????????????????????????? client.send(com);
??????????????????????? }catch(Exception ex){
?????????????????????????? ex.printStackTrace();
??????????????????????? }
??????????????????????? gameMode = 4;
??????????????????????? initFlag = true;
??????????????????????? display.setCurrent(r);
???????????????????????
??????????????????????? setCommand("QryRoomsAction",null);
??????????????????????? getCommand();
??????????????????????? try{
?????????????????????????? client.send(com);
??????????????????????? }catch(Exception ex){
?????????????????????????? ex.printStackTrace();
??????????????????????? }
???????????????????????
???????????????????????
??????????????????????? tempName = userName.getString();
??????????????????????? tempPassword = passWord.getString();
??????????????????? }else{
??????????????????????? Alert alert = new Alert("警告","用戶名和密碼不能為空",null,AlertType.ERROR);
??????? ?????? alert.setTimeout(Alert.FOREVER);
??????? ?????? display.setCurrent(alert);
??????????????????? }
??????????????? }else if(c == backCom){
??????????????????????? gameMode = 1;
??????????????????????? display.setCurrent(r);
??????????????? }
??????????? }
??????? }?

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