package org.example.sudoku;
import android.app.Activity;
import android.os.Bundle;
import org.example.sudoku.R;
public class Sudoku extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
}
我导入了 R 但它仍然显示 main 无法解析或不是字段