jstring转char*
const char* serverip = jserverip?env->GetStringUTFChars(jserverip, NULL):NULL;
if(serverip==NULL)
return (jlong)NULL;
指针p+i和&p[i]一样
jstring转char*
const char* serverip = jserverip?env->GetStringUTFChars(jserverip, NULL):NULL;
if(serverip==NULL)
return (jlong)NULL;
指针p+i和&p[i]一样