优化：项目结构、命名

code/mynative.cpp

@@ -0,0 +1,12 @@
+#include "com_myjni_api_NativeCommand.h"
+#include <iostream>
+#include <stdio.h>
+#include <android/log.h>
+
+#define LOG_TAG "MyClientCmd"
+
+JNIEXPORT void JNICALL Java_com_myjni_api_NativeCommand_testHello(JNIEnv *, jobject)
+{
+    printf("this is C++ print");
+    __android_log_print(ANDROID_LOG_INFO, LOG_TAG, "hello, this is C++ print");
+}