Intent带参数跳转

[code]Intent intent = new Intent();
       Bundle bundle = new Bundle();
       bundle.putString("XXX", XXX);
       intent.setClass(ActivityMain.this,XXX.class);
       intent.putExtras(bundle);
       startActivity(intent);

[code]Bundle bundle = new Bundle();
         bundle = this.getIntent().getExtras();
         double XXX=  bundle.getString("XXX");