Android First应用程序教程

时间：2012-06-26 17:50:13

标签： android android-intent android-emulator

我已根据Android教程创建了一个应用：http://developer.android.com/training/basics/firstapp/index.html

除应用程序名称外，代码完全相同，但应用程序强行关闭。



  06-24 16:19:22.279: E/Zygote(33): setreuid() failed. errno: 2
    06-24 16:19:33.028: E/Zygote(33): setreuid() failed. errno: 17
    06-24 16:19:34.568: E/BatteryService(62): usbOnlinePath not found
    06-24 16:19:34.568: E/BatteryService(62): batteryVoltagePath not found
    06-24 16:19:34.568: E/BatteryService(62): batteryTemperaturePath not found
    06-24 16:19:34.588: E/SurfaceFlinger(62): Couldn't open /sys/power/wait_for_fb_sleep or         /sys/power/wait_for_fb_wake
    06-24 16:19:34.698: E/SensorService(62): couldn't open device for module sensors (Invalid argument)
    06-24 16:19:39.449: E/System(62): Failure starting core service
06-24 16:19:39.449: E/System(62): java.lang.SecurityException
06-24 16:19:39.449: E/System(62):   at android.os.BinderProxy.transact(Native Method)
06-24 16:19:39.449: E/System(62):   at android.os.ServiceManagerProxy.addService(ServiceManagerNative.java:146)
06-24 16:19:39.449: E/System(62):   at android.os.ServiceManager.addService(ServiceManager.java:72)
06-24 16:19:39.449: E/System(62):   at com.android.server.ServerThread.run(SystemServer.java:206)
06-24 16:19:39.479: E/EventHub(62): could not get driver version for /dev/input/mouse0, Not a typewriter
06-24 16:19:39.479: E/EventHub(62): could not get driver version for /dev/input/mice, Not a typewriter
06-24 16:19:39.808: E/SoundPool(62): error loading /system/media/audio/ui/Effect_Tick.ogg
06-24 16:19:39.808: E/SoundPool(62): error loading /system/media/audio/ui/KeypressStandard.ogg
06-24 16:19:39.808: E/SoundPool(62): error loading /system/media/audio/ui/KeypressSpacebar.ogg
06-24 16:19:39.808: E/SoundPool(62): error loading /system/media/audio/ui/KeypressDelete.ogg
06-24 16:19:39.808: E/SoundPool(62): error loading /system/media/audio/ui/KeypressReturn.ogg
06-24 16:19:39.828: E/UsbObserver(62): java.lang.NullPointerException
06-24 16:19:39.828: E/UsbObserver(62):  at com.android.server.UsbObserver.init(UsbObserver.java:131)
06-24 16:19:39.828: E/UsbObserver(62):  at com.android.server.UsbObserver.<init>(UsbObserver.java:65)
06-24 16:19:39.828: E/UsbObserver(62):  at com.android.server.ServerThread.run(SystemServer.java:402)
06-24 16:19:40.429: E/ThrottleService(62): Could not open GPS configuration file /etc/gps.conf
06-24 16:19:40.958: E/logwrapper(137): executing /system/bin/tc failed: No such file or directory
06-24 16:19:41.069: E/logwrapper(139): executing /system/bin/tc failed: No such file or directory
06-24 16:19:41.129: E/logwrapper(144): executing /system/bin/tc failed: No such file or directory
06-24 16:37:58.420: E/AndroidRuntime(345): FATAL EXCEPTION: main
06-24 16:37:58.420: E/AndroidRuntime(345): java.lang.IllegalStateException: Could not execute method of the activity
06-24 16:37:58.420: E/AndroidRuntime(345):  at android.view.View$1.onClick(View.java:2144)
06-24 16:37:58.420: E/AndroidRuntime(345):  at android.view.View.performClick(View.java:2485)
06-24 16:37:58.420: E/AndroidRuntime(345):  at android.view.View$PerformClick.run(View.java:9080)
06-24 16:37:58.420: E/AndroidRuntime(345):  at android.os.Handler.handleCallback(Handler.java:587)
06-24 16:37:58.420: E/AndroidRuntime(345):  at android.os.Handler.dispatchMessage(Handler.java:92)
06-24 16:37:58.420: E/AndroidRuntime(345):  at android.os.Looper.loop(Looper.java:123)
06-24 16:37:58.420: E/AndroidRuntime(345):  at android.app.ActivityThread.main(ActivityThread.java:3683)
06-24 16:37:58.420: E/AndroidRuntime(345):  at java.lang.reflect.Method.invokeNative(Native Method)
06-24 16:37:58.420: E/AndroidRuntime(345):  at java.lang.reflect.Method.invoke(Method.java:507)
06-24 16:37:58.420: E/AndroidRuntime(345):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
06-24 16:37:58.420: E/AndroidRuntime(345):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
06-24 16:37:58.420: E/AndroidRuntime(345):  at dalvik.system.NativeStart.main(Native Method)
06-24 16:37:58.420: E/AndroidRuntime(345): Caused by: java.lang.reflect.InvocationTargetException
06-24 16:37:58.420: E/AndroidRuntime(345):  at java.lang.reflect.Method.invokeNative(Native Method)
06-24 16:37:58.420: E/AndroidRuntime(345):  at java.lang.reflect.Method.invoke(Method.java:507)
06-24 16:37:58.420: E/AndroidRuntime(345):  at android.view.View$1.onClick(View.java:2139)
06-24 16:37:58.420: E/AndroidRuntime(345):  ... 11 more
06-24 16:37:58.420: E/AndroidRuntime(345): Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.myfirstapp/DisplayMessageActivity.java.DisplayMessageActivity}; have you declared this activity in your AndroidManifest.xml?
06-24 16:37:58.420: E/AndroidRuntime(345):  at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1405)
06-24 16:37:58.420: E/AndroidRuntime(345):  at android.app.Instrumentation.execStartActivity(Instrumentation.java:1379)
06-24 16:37:58.420: E/AndroidRuntime(345):  at android.app.Activity.startActivityForResult(Activity.java:2827)
06-24 16:37:58.420: E/AndroidRuntime(345):  at android.app.Activity.startActivity(Activity.java:2933)
06-24 16:37:58.420: E/AndroidRuntime(345):  at com.myfirstapp.MyFirstActivity.sendMessage(MyFirstActivity.java:26)
06-24 16:37:58.420: E/AndroidRuntime(345):  ... 14 more
06-24 16:38:47.529: E/AndroidRuntime(357): FATAL EXCEPTION: main
06-24 16:38:47.529: E/AndroidRuntime(357): java.lang.IllegalStateException: Could not execute method of the activity
06-24 16:38:47.529: E/AndroidRuntime(357):  at android.view.View$1.onClick(View.java:2144)
06-24 16:38:47.529: E/AndroidRuntime(357):  at android.view.View.performClick(View.java:2485)
06-24 16:38:47.529: E/AndroidRuntime(357):  at android.view.View$PerformClick.run(View.java:9080)
06-24 16:38:47.529: E/AndroidRuntime(357):  at android.os.Handler.handleCallback(Handler.java:587)
06-24 16:38:47.529: E/AndroidRuntime(357):  at android.os.Handler.dispatchMessage(Handler.java:92)
06-24 16:38:47.529: E/AndroidRuntime(357):  at android.os.Looper.loop(Looper.java:123)
06-24 16:38:47.529: E/AndroidRuntime(357):  at android.app.ActivityThread.main(ActivityThread.java:3683)
06-24 16:38:47.529: E/AndroidRuntime(357):  at java.lang.reflect.Method.invokeNative(Native Method)
06-24 16:38:47.529: E/AndroidRuntime(357):  at java.lang.reflect.Method.invoke(Method.java:507)
06-24 16:38:47.529: E/AndroidRuntime(357):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
06-24 16:38:47.529: E/AndroidRuntime(357):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
06-24 16:38:47.529: E/AndroidRuntime(357):  at dalvik.system.NativeStart.main(Native Method)
06-24 16:38:47.529: E/AndroidRuntime(357): Caused by: java.lang.reflect.InvocationTargetException
06-24 16:38:47.529: E/AndroidRuntime(357):  at java.lang.reflect.Method.invokeNative(Native Method)
06-24 16:38:47.529: E/AndroidRuntime(357):  at java.lang.reflect.Method.invoke(Method.java:507)
06-24 16:38:47.529: E/AndroidRuntime(357):  at android.view.View$1.onClick(View.java:2139)
06-24 16:38:47.529: E/AndroidRuntime(357):  ... 11 more
06-24 16:38:47.529: E/AndroidRuntime(357): Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.myfirstapp/DisplayMessageActivity.java.DisplayMessageActivity}; have you declared this activity in your AndroidManifest.xml?
06-24 16:38:47.529: E/AndroidRuntime(357):  at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1405)
06-24 16:38:47.529: E/AndroidRuntime(357):  at android.app.Instrumentation.execStartActivity(Instrumentation.java:1379)
06-24 16:38:47.529: E/AndroidRuntime(357):  at android.app.Activity.startActivityForResult(Activity.java:2827)
06-24 16:38:47.529: E/AndroidRuntime(357):  at android.app.Activity.startActivity(Activity.java:2933)
06-24 16:38:47.529: E/AndroidRuntime(357):  at com.myfirstapp.MyFirstActivity.sendMessage(MyFirstActivity.java:26)
06-24 16:38:47.529: E/AndroidRuntime(357):  ... 14 more
06-24 16:43:20.070: E/AndroidRuntime(385): FATAL EXCEPTION: main
06-24 16:43:20.070: E/AndroidRuntime(385): java.lang.IllegalStateException: Could not execute method of the activity
06-24 16:43:20.070: E/AndroidRuntime(385):  at android.view.View$1.onClick(View.java:2144)
06-24 16:43:20.070: E/AndroidRuntime(385):  at android.view.View.performClick(View.java:2485)
06-24 16:43:20.070: E/AndroidRuntime(385):  at android.view.View$PerformClick.run(View.java:9080)
06-24 16:43:20.070: E/AndroidRuntime(385):  at android.os.Handler.handleCallback(Handler.java:587)
06-24 16:43:20.070: E/AndroidRuntime(385):  at android.os.Handler.dispatchMessage(Handler.java:92)
06-24 16:43:20.070: E/AndroidRuntime(385):  at android.os.Looper.loop(Looper.java:123)
06-24 16:43:20.070: E/AndroidRuntime(385):  at android.app.ActivityThread.main(ActivityThread.java:3683)
06-24 16:43:20.070: E/AndroidRuntime(385):  at java.lang.reflect.Method.invokeNative(Native Method)
06-24 16:43:20.070: E/AndroidRuntime(385):  at java.lang.reflect.Method.invoke(Method.java:507)
06-24 16:43:20.070: E/AndroidRuntime(385):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
06-24 16:43:20.070: E/AndroidRuntime(385):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
06-24 16:43:20.070: E/AndroidRuntime(385):  at dalvik.system.NativeStart.main(Native Method)
06-24 16:43:20.070: E/AndroidRuntime(385): Caused by: java.lang.reflect.InvocationTargetException
06-24 16:43:20.070: E/AndroidRuntime(385):  at java.lang.reflect.Method.invokeNative(Native Method)
06-24 16:43:20.070: E/AndroidRuntime(385):  at java.lang.reflect.Method.invoke(Method.java:507)
06-24 16:43:20.070: E/AndroidRuntime(385):  at android.view.View$1.onClick(View.java:2139)
06-24 16:43:20.070: E/AndroidRuntime(385):  ... 11 more
06-24 16:43:20.070: E/AndroidRuntime(385): Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.myfirstapp/DisplayMessageActivity.java.DisplayMessageActivity}; have you declared this activity in your AndroidManifest.xml?
06-24 16:43:20.070: E/AndroidRuntime(385):  at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1405)
06-24 16:43:20.070: E/AndroidRuntime(385):  at android.app.Instrumentation.execStartActivity(Instrumentation.java:1379)
06-24 16:43:20.070: E/AndroidRuntime(385):  at android.app.Activity.startActivityForResult(Activity.java:2827)
06-24 16:43:20.070: E/AndroidRuntime(385):  at android.app.Activity.startActivity(Activity.java:2933)
06-24 16:43:20.070: E/AndroidRuntime(385):  at com.myfirstapp.MyFirstActivity.sendMessage(MyFirstActivity.java:26)
06-24 16:43:20.070: E/AndroidRuntime(385):  ... 14 more
06-24 16:45:09.099: E/AndroidRuntime(425): FATAL EXCEPTION: main
06-24 16:45:09.099: E/AndroidRuntime(425): java.lang.IllegalStateException: Could not execute method of the activity
06-24 16:45:09.099: E/AndroidRuntime(425):  at android.view.View$1.onClick(View.java:2144)
06-24 16:45:09.099: E/AndroidRuntime(425):  at android.view.View.performClick(View.java:2485)
06-24 16:45:09.099: E/AndroidRuntime(425):  at android.view.View$PerformClick.run(View.java:9080)
06-24 16:45:09.099: E/AndroidRuntime(425):  at android.os.Handler.handleCallback(Handler.java:587)
06-24 16:45:09.099: E/AndroidRuntime(425):  at android.os.Handler.dispatchMessage(Handler.java:92)
06-24 16:45:09.099: E/AndroidRuntime(425):  at android.os.Looper.loop(Looper.java:123)
06-24 16:45:09.099: E/AndroidRuntime(425):  at android.app.ActivityThread.main(ActivityThread.java:3683)
06-24 16:45:09.099: E/AndroidRuntime(425):  at java.lang.reflect.Method.invokeNative(Native Method)
06-24 16:45:09.099: E/AndroidRuntime(425):  at java.lang.reflect.Method.invoke(Method.java:507)
06-24 16:45:09.099: E/AndroidRuntime(425):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
06-24 16:45:09.099: E/AndroidRuntime(425):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
06-24 16:45:09.099: E/AndroidRuntime(425):  at dalvik.system.NativeStart.main(Native Method)
06-24 16:45:09.099: E/AndroidRuntime(425): Caused by: java.lang.reflect.InvocationTargetException
06-24 16:45:09.099: E/AndroidRuntime(425):  at java.lang.reflect.Method.invokeNative(Native Method)
06-24 16:45:09.099: E/AndroidRuntime(425):  at java.lang.reflect.Method.invoke(Method.java:507)
06-24 16:45:09.099: E/AndroidRuntime(425):  at android.view.View$1.onClick(View.java:2139)
06-24 16:45:09.099: E/AndroidRuntime(425):  ... 11 more
06-24 16:45:09.099: E/AndroidRuntime(425): Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.myfirstapp/DisplayMessageActivity.java.DisplayMessageActivity}; have you declared this activity in your AndroidManifest.xml?
06-24 16:45:09.099: E/AndroidRuntime(425):  at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1405)
06-24 16:45:09.099: E/AndroidRuntime(425):  at android.app.Instrumentation.execStartActivity(Instrumentation.java:1379)
06-24 16:45:09.099: E/AndroidRuntime(425):  at android.app.Activity.startActivityForResult(Activity.java:2827)
06-24 16:45:09.099: E/AndroidRuntime(425):  at android.app.Activity.startActivity(Activity.java:2933)
06-24 16:45:09.099: E/AndroidRuntime(425):  at com.myfirstapp.MyFirstActivity.sendMessage(MyFirstActivity.java:26)
06-24 16:45:09.099: E/AndroidRuntime(425):  ... 14 more
06-24 18:20:31.070: E/AndroidRuntime(464): FATAL EXCEPTION: main
06-24 18:20:31.070: E/AndroidRuntime(464): java.lang.IllegalStateException: Could not execute method of the activity
06-24 18:20:31.070: E/AndroidRuntime(464):  at android.view.View$1.onClick(View.java:2144)
06-24 18:20:31.070: E/AndroidRuntime(464):  at android.view.View.performClick(View.java:2485)
06-24 18:20:31.070: E/AndroidRuntime(464):  at android.view.View$PerformClick.run(View.java:9080)
06-24 18:20:31.070: E/AndroidRuntime(464):  at android.os.Handler.handleCallback(Handler.java:587)
06-24 18:20:31.070: E/AndroidRuntime(464):  at android.os.Handler.dispatchMessage(Handler.java:92)
06-24 18:20:31.070: E/AndroidRuntime(464):  at android.os.Looper.loop(Looper.java:123)
06-24 18:20:31.070: E/AndroidRuntime(464):  at android.app.ActivityThread.main(ActivityThread.java:3683)
06-24 18:20:31.070: E/AndroidRuntime(464):  at java.lang.reflect.Method.invokeNative(Native Method)
06-24 18:20:31.070: E/AndroidRuntime(464):  at java.lang.reflect.Method.invoke(Method.java:507)
06-24 18:20:31.070: E/AndroidRuntime(464):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
06-24 18:20:31.070: E/AndroidRuntime(464):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
06-24 18:20:31.070: E/AndroidRuntime(464):  at dalvik.system.NativeStart.main(Native Method)
06-24 18:20:31.070: E/AndroidRuntime(464): Caused by: java.lang.reflect.InvocationTargetException
06-24 18:20:31.070: E/AndroidRuntime(464):  at java.lang.reflect.Method.invokeNative(Native Method)
06-24 18:20:31.070: E/AndroidRuntime(464):  at java.lang.reflect.Method.invoke(Method.java:507)
06-24 18:20:31.070: E/AndroidRuntime(464):  at android.view.View$1.onClick(View.java:2139)
06-24 18:20:31.070: E/AndroidRuntime(464):  ... 11 more
06-24 18:20:31.070: E/AndroidRuntime(464): Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.myfirstapp/DisplayMessageActivity.java.DisplayMessageActivity}; have you declared this activity in your AndroidManifest.xml?
06-24 18:20:31.070: E/AndroidRuntime(464):  at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1405)
06-24 18:20:31.070: E/AndroidRuntime(464):  at android.app.Instrumentation.execStartActivity(Instrumentation.java:1379)
06-24 18:20:31.070: E/AndroidRuntime(464):  at android.app.Activity.startActivityForResult(Activity.java:2827)
06-24 18:20:31.070: E/AndroidRuntime(464):  at android.app.Activity.startActivity(Activity.java:2933)
06-24 18:20:31.070: E/AndroidRuntime(464):  at com.myfirstapp.MyFirstActivity.sendMessage(MyFirstActivity.java:26)
06-24 18:20:31.070: E/AndroidRuntime(464):  ... 14 more
06-24 18:25:12.590: E/AndroidRuntime(477): FATAL EXCEPTION: main
06-24 18:25:12.590: E/AndroidRuntime(477): java.lang.IllegalStateException: Could not execute method of the activity
06-24 18:25:12.590: E/AndroidRuntime(477):  at android.view.View$1.onClick(View.java:2144)
06-24 18:25:12.590: E/AndroidRuntime(477):  at android.view.View.performClick(View.java:2485)
06-24 18:25:12.590: E/AndroidRuntime(477):  at android.view.View$PerformClick.run(View.java:9080)
06-24 18:25:12.590: E/AndroidRuntime(477):  at android.os.Handler.handleCallback(Handler.java:587)
06-24 18:25:12.590: E/AndroidRuntime(477):  at android.os.Handler.dispatchMessage(Handler.java:92)
06-24 18:25:12.590: E/AndroidRuntime(477):  at android.os.Looper.loop(Looper.java:123)
06-24 18:25:12.590: E/AndroidRuntime(477):  at android.app.ActivityThread.main(ActivityThread.java:3683)
06-24 18:25:12.590: E/AndroidRuntime(477):  at java.lang.reflect.Method.invokeNative(Native Method)
06-24 18:25:12.590: E/AndroidRuntime(477):  at java.lang.reflect.Method.invoke(Method.java:507)
06-24 18:25:12.590: E/AndroidRuntime(477):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
06-24 18:25:12.590: E/AndroidRuntime(477):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
06-24 18:25:12.590: E/AndroidRuntime(477):  at dalvik.system.NativeStart.main(Native Method)
06-24 18:25:12.590: E/AndroidRuntime(477): Caused by: java.lang.reflect.InvocationTargetException
06-24 18:25:12.590: E/AndroidRuntime(477):  at java.lang.reflect.Method.invokeNative(Native Method)
06-24 18:25:12.590: E/AndroidRuntime(477):  at java.lang.reflect.Method.invoke(Method.java:507)
06-24 18:25:12.590: E/AndroidRuntime(477):  at android.view.View$1.onClick(View.java:2139)
06-24 18:25:12.590: E/AndroidRuntime(477):  ... 11 more
06-24 18:25:12.590: E/AndroidRuntime(477): Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.myfirstapp/DisplayMessageActivity.java.DisplayMessageActivity}; have you declared this activity in your AndroidManifest.xml?
06-24 18:25:12.590: E/AndroidRuntime(477):  at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1405)
06-24 18:25:12.590: E/AndroidRuntime(477):  at android.app.Instrumentation.execStartActivity(Instrumentation.java:1379)
06-24 18:25:12.590: E/AndroidRuntime(477):  at android.app.Activity.startActivityForResult(Activity.java:2827)
06-24 18:25:12.590: E/AndroidRuntime(477):  at android.app.Activity.startActivity(Activity.java:2933)
06-24 18:25:12.590: E/AndroidRuntime(477):  at com.myfirstapp.MyFirstActivity.sendMessage(MyFirstActivity.java:26)
06-24 18:25:12.590: E/AndroidRuntime(477):  ... 14 more

<code>

不确定如何调试此应用。 请建议

由于

SSAMEERR

5 个答案:

答案 0 :(得分：1)

  • 无法找到明确的活动类 {com.myfirstapp / DisplayMessageActivity.java.DisplayMessageActivity}; 你有没有在AndroidManifest.xml中声明这个活动？

将DisplayMessageActivity的条目放入manifest .......

它DisplayMessageActivity是第一个Activity使用intent-filter，其他删除它。

<activity android:name=".DisplayMessageActivity" android:label="Demo App">
  <intent-filter>
    <action android:name="android.intent.action.MAIN" />
    <category android:name="android.intent.category.LAUNCHER" />
  </intent-filter>
</activity>

答案 1 :(得分：1)

答案在logcat中：

Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.myfirstapp/DisplayMessageActivity.java.DisplayMessageActivity}; have you declared this activity in your AndroidManifest.xml?

Declare the activity in your manifest就像这样（即将其插入<application>和</application>标签之间的某处）：

<activity android:name=".DisplayMessageActivity" />

这是一个常见的初学者错误...在你习惯它之前至少要多少次这个错误。 ：）

答案 2 :(得分：1)

将其作为

添加到DisplayMessageActivity清单中 
<application ... >
    <activity android:name=".DisplayMessageActivity" />
    ...
</application>

答案 3 :(得分：0)

确保项目中的其他活动已添加到AndroidManifest.xml

答案 4 :(得分：0)

您必须将您的活动包含在Manifest中，如：

<activity android:name=".MyFirstActivity"
            android:theme="@android:style/Theme.NoTitleBar">

        </activity>
相关问题
最新问题