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try {//success = jsonObject.getInt("success");message = jsonObject.optString("message");//添加注释if (success == 1) {String str = "" + success;Toast toast = Toast.makeText(getApplicationContext(), "返回码=" + str + ":" + message, Toast.LENGTH_LONG);toast.show();Intent intent = new Intent(MainActivity.this, QqMainActivity.class);startActivity(intent);//} else if (success == 0) {String str = "" + success;Toast toast = Toast.makeText(getApplicationContext(), "返回码=" + str + ":" + message, Toast.LENGTH_LONG);toast.show();}//} catch (JSONException e) {e.printStackTrace();}

A. 解析服务器返回参数
B. 登陆成功
C. 登录失败
D. 捕捉异常值

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为下列代码添加注释try {//添加注释success = jsonObject.getInt("success");message = jsonObject.optString("message");//if (success == 1) {String str = "" + success;Toast toast = Toast.makeText(getApplicationContext(), "返回码=" + str + ":" + message, Toast.LENGTH_LONG);toast.show();Intent intent = new Intent(MainActivity.this, QqMainActivity.class);startActivity(intent);//} else if (success == 0) {String str = "" + success;Toast toast = Toast.makeText(getApplicationContext(), "返回码=" + str + ":" + message, Toast.LENGTH_LONG);toast.show();}//} catch (JSONException e) {e.printStackTrace();}

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为下列代码添加注释/RequestQueue requestQueue=Volley.newRequestQueue(this);//添加注释Map map=new HashMap<>();map.put("user_name",mEdtAccount.getText().toString());map.put("user_pwd",mEdtPwd.getText().toString());//Request request=new JsonObjectRequest(1, url_register,new Gson().toJson(map), new Response.Listener() {//requestQueue.add(request);

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B. 封装请求参数
C. 定义请求
D. 将请求放入队列