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//java_md.c

/* Load the Java VM DLL */
    if ((handle = LoadLibrary(jvmpath)) == 0) {
        ReportErrorMessage2("Error loading: %s", (char *)jvmpath, JNI_TRUE);
        return JNI_FALSE;
    }

    /* Now get the function addresses */
    ifn->CreateJavaVM =
        (void *)GetProcAddress(handle, "JNI_CreateJavaVM");
    ifn->GetDefaultJavaVMInitArgs =
        (void *)GetProcAddress(handle, "JNI_GetDefaultJavaVMInitArgs");

LoadLibrary, GetProcAddress分别用于windows下加载DLL和获取DLL中函数的地址