为什么我的代码不能读取“for”中的所有字符串？

如何解决为什么我的代码不能读取“for”中的所有字符串？

如果我运行此代码并为 n（从键盘读取的句子数）选择 3，它将只允许我阅读其中的两个。我做错了什么？

01-10 02:37:11.063   565   637 I DropBoxManagerService: add tag=event_data isTagEnabled=true flags=0x2
01-10 02:37:11.066   565   608 W BroadcastQueue: Background execution not allowed: receiving Intent { act=android.intent.action.DROPBOX_ENTRY_ADDED flg=0x10 (has extras) } to com.google.android.gms/.stats.service.DropBoxEntryAddedReceiver
01-10 02:37:11.066   565   608 W BroadcastQueue: Background execution not allowed: receiving Intent { act=android.intent.action.DROPBOX_ENTRY_ADDED flg=0x10 (has extras) } to com.google.android.gms/.chimera.GmsIntentOperationService$PersistentTrustedReceiver
01-10 02:37:11.103  7038  8988 I NetworkScheduler.Stats: Task com.google.android.gms/com.google.android.gms.checkin.EventLogService finished executing. cause:2 result: 1 elapsed_millis: 177 uptime_millis: 177 exec_start_elapsed_seconds: 12769 [CONTEXT service_id=218 ]
01-10 02:37:12.895   565   608 W BroadcastQueue: Background execution not allowed: receiving Intent { act=android.intent.action.DROPBOX_ENTRY_ADDED flg=0x10 (has extras) } to com.google.android.gms/.stats.service.DropBoxEntryAddedReceiver
01-10 02:37:12.895   565   608 W BroadcastQueue: Background execution not allowed: receiving Intent { act=android.intent.action.DROPBOX_ENTRY_ADDED flg=0x10 (has extras) } to com.google.android.gms/.chimera.GmsIntentOperationService$PersistentTrustedReceiver
01-10 02:37:20.885   565   599 E JobScheduler.Background: App com.google.android.gms became active but still in NEVER bucket
01-10 02:37:20.887   565   608 I DropBoxManagerService: add tag=system_server_wtf isTagEnabled=true flags=0x2
01-10 02:37:22.895   565   608 W BroadcastQueue: Background execution not allowed: receiving Intent { act=android.intent.action.DROPBOX_ENTRY_ADDED flg=0x10 (has extras) } to com.google.android.gms/.stats.service.DropBoxEntryAddedReceiver
01-10 02:37:22.895   565   608 W BroadcastQueue: Background execution not allowed: receiving Intent { act=android.intent.action.DROPBOX_ENTRY_ADDED flg=0x10 (has extras) } to com.google.android.gms/.chimera.GmsIntentOperationService$PersistentTrustedReceiver
01-10 02:37:26.085   266 25461 E android.system.suspend@1.0-service: Error opening kernel wakelock stats for: wakeup34: Permission denied
01-10 02:37:26.079   266   266 W Binder:266_3: type=1400 audit(0.0:10881): avc: denied { read } for name="wakeup34" dev="sysfs" ino=17466 scontext=u:r:system_suspend:s0 tcontext=u:object_r:sysfs:s0 tclass=dir permissive=0
01-10 02:37:26.091   266 25461 E android.system.suspend@1.0-service: Error opening kernel wakelock stats for: wakeup35: Permission denied
01-10 02:37:26.087   266   266 W Binder:266_3: type=1400 audit(0.0:10882): avc: denied { read } for name="wakeup35" dev="sysfs" ino=17526 scontext=u:r:system_suspend:s0 tcontext=u:object_r:sysfs:s0 tclass=dir permissive=0
01-10 02:37:38.154   435   435 E netmgr  : qemu_pipe_open_ns:62: Could not connect to the 'pipe:qemud:network' service: Invalid argument
01-10 02:37:38.154   435   435 E netmgr  : Failed to open QEMU pipe 'qemud:network': Invalid argument
01-10 02:37:38.538   438   438 E wifi_forwarder: qemu_pipe_open_ns:62: Could not connect to the 'pipe:qemud:wififorward' service: Invalid argument
01-10 02:37:38.538   438   438 E wifi_forwarder: RemoteConnection failed to initialize: RemoteConnection failed to open pipe
01-10 02:38:13.546   565   565 D CompatibilityChangeReporter: Compat change id reported: 135634846; UID 10115; state: DISABLED
01-10 02:38:13.546   565   609 D CompatibilityChangeReporter: Compat change id reported: 143937733; UID 10115; state: DISABLED
01-10 02:38:13.569   565  1750 D WifiNl80211Manager: Scan result ready event
01-10 02:38:13.569   565  1750 D WifiNative: Scan result ready event
01-10 02:38:13.577   357   357 D Zygote  : Forked child process 13230
01-10 02:38:13.584   565   609 I ActivityManager: Start proc 13230:com.google.android.videos/u0a115 for service {com.google.android.videos/androidx.work.impl.background.systemjob.SystemJobService}
01-10 02:38:13.599 13230 13230 W .android.video: Unexpected CPU variant for X86 using defaults: x86
01-10 02:38:13.615 13230 13230 E .android.video: Not starting debugger since process cannot load the jdwp agent.
01-10 02:38:13.656 13230 13230 D ApplicationLoaders: Returning zygote-cached class loader: /system/framework/android.test.base.jar
01-10 02:38:13.659 13230 13230 I .android.video: The ClassLoaderContext is a special shared library.
01-10 02:38:13.674 13230 13230 I .android.video: The ClassLoaderContext is a special shared library.
01-10 02:38:13.706 13230 13230 D NetworkSecurityConfig: No Network Security Config specified,using platform default
01-10 02:38:13.707 13230 13230 D NetworkSecurityConfig: No Network Security Config specified,using platform default
01-10 02:38:13.869 13230 13230 I TetheringManager: registerTetheringEventCallback:com.google.android.videos
01-10 02:38:14.007 13230 13266 W PlayMovies: esk.run:3 User config found

解决方法

您在读取 ​​n 后忘记取出输入中留下的 '\n'。

您可以将 scanf 更改为：scanf("%d\n",&n); 或在其后添加 getchar();。

此外，如评论中所述，您在每个数组中分配一个字符。您应该将结果 sizeof 乘以您想要的字母数 + 1（记住 \0。）

*(x + i) = (char*)malloc(sizeof(char) * DESIRED_LENGTH);

最后...你还应该释放所有的指针（在释放 x 之前），否则你会出现内存泄漏：

for (int i = 0; i < n; i++)
   free(*(x + i));