告诉我如何使用网格在两行中排列无限数量的列（和元素）
我正在尝试这样做：
grid-template-columns: repeat(auto-fill, 150px);
grid-template-rows: repeat(2, 300px);
它只是把它们放在一行上
或者一般如何解决这样的问题。
有一个日期过滤器和许多查询。是否可以在不重复过滤条件的情况下向查询添加过滤？
$query = Leads::orderBy('created_at', 'desc');
if (request()->filled('date_start')) {
$query->where('created_at', '>=', $request->date_start);
}
if (request()->filled('date_end')) {
$query->where('created_at', '<=', $request->date_end);
}
...
$q1 = $query->where('operator', '=', $user->id)->where('status','New')->count();
$q2 = $query->where('operator', '=', $user->id)->where('status','New2')->count();
$q3 = $query->where('operator', '=', $user->id)->where('status','New3')->count();
...
在此示例中，$q2 为 0，因为涉及到来自 $q1 的查询。
gos = 'АЯ123В_45' # проверка госномера
simbol = 'АВЕКМНОРСТУХ'
if len(gos) == 9 or len(gos) == 10: # проверка на длинну симовол
if gos[0] in simbol: # если перавая буква есть в переменной 'simbol'
if gos[1:4].isdigit(): # если первый, второй, третий символ цифра
if gos[4] in simbol:
if gos[5] in simbol:
if gos[6:].isdigit():
print('YES')
else:
print('NO')
我尝试重新创建项目，安装了访问引擎，通过 nuGet 添加了 microsoft.data.sqlclient，安装了不同的数据库扩展，在互联网上查看了很多内容，但都没有任何帮助。我需要添加一个访问数据库。该怎么办？
你能帮忙吗？在拆分（用逗号将字符串分成数组）时，会出现一些错误信息。以下是我尝试拆分成数组的变量 chatsStr 的内容：
chatsStr-ODqP1-1G1AtcwnrDVLk, ZqnkGaeyk3UkRLRJH8Qh1tQiF7d2
日志中显示的内容如下：
chatsIds[Ljava.lang.String;@86a42f3
激活码如下：
package dem.corp.androidmessenger.bottomnav.chats;
import static androidx.fragment.app.FragmentManager.TAG;
import androidx.fragment.app.Fragment;
import android.annotation.SuppressLint;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.recyclerview.widget.LinearLayoutManager;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.ValueEventListener;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Objects;
import dem.corp.androidmessenger.chats.Chat;
import dem.corp.androidmessenger.chats.ChatsAdapter;
import dem.corp.androidmessenger.databinding.FragmentChatsBinding;
import dem.corp.androidmessenger.utils.ChatUtil;
public class ChatsFragment extends Fragment {
private FragmentChatsBinding binding;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
binding = FragmentChatsBinding.inflate(inflater, container, false);
loadChats();
return binding.getRoot();
}
@SuppressLint("RestrictedApi")
private void loadChats(){
Log.w(TAG, "Error getting documents. 222");
ArrayList<Chat> chats = new ArrayList<>();
String uid = Objects.requireNonNull(FirebaseAuth.getInstance().getCurrentUser()).getUid();
Log.w(TAG, "Error getting documents. 222 uid =" + uid);
FirebaseDatabase.getInstance().getReference().addListenerForSingleValueEvent(new ValueEventListener() {
@SuppressLint("RestrictedApi")
@Override
public void onDataChange(@NonNull DataSnapshot snapshot) {
String chatsStr = Objects.requireNonNull(snapshot.child("Users").child("ZqnkGaeyk3UkRLRJH8Qh1tQiF7d2").child("chats").getValue()).toString();
Log.w(TAG, "Error getting documents. 2222 chatsStr" + chatsStr);
String[] chatsIds = chatsStr.split(",");
Log.w(TAG, "Error getting documents. 2222 chatsIds" + chatsIds);
//ChatUtil.createChat("ZqnkGaeyk3UkRLRJH8Qh1tQiF7d2");
// FirebaseDatabase.getInstance().getReference().child("Users").child("mdlfnx5Bo4dbpKOjwmUxaiyJzAY2")
// .child("chats").setValue(chatsUpd);
String uid = Objects.requireNonNull(FirebaseAuth.getInstance().getCurrentUser()).getUid();
Log.w(TAG, "Error getting documents. 2222 chats uid=" + uid);
HashMap<String, String> chatInfo = new HashMap<>();
chatInfo.put("user1", uid);
chatInfo.put("user2", "1Sx2FCTKDcdfjhztPtTbWgSxFZP2");
String chatCurrentId = "ZqnkGaeyk3UkRLRJH8Qh1tQiF7d2";
// String chatId = generateChatId(uid, user.uid);
FirebaseDatabase.getInstance().getReference().child("Chats").child(chatCurrentId)
.setValue(chatInfo);
if (chatsIds.length==0) return;
for (String chatId : chatsIds){
// DataSnapshot chatSnapshot = snapshot.child("Chats").child(chatId);
DataSnapshot chatSnapshot = snapshot.child("Chats").child("ZqnkGaeyk3UkRLRJH8Qh1tQiF7d2");
String userId1 = Objects.requireNonNull(chatSnapshot.child("user1").getValue()).toString();
Log.w(TAG, "Error getting documents. 2222 userId1=" + userId1);
String userId2 = Objects.requireNonNull(chatSnapshot.child("user2").getValue()).toString();
Log.w(TAG, "Error getting documents. 2222 userId2=" + userId2);
String chatUserId = (uid.equals(userId1)) ? userId2 : userId1;
Log.w(TAG, "Error getting documents. 2222 chatUserId=" + chatUserId);
String chatName = Objects.requireNonNull(snapshot.child("Users").child(chatUserId).child("username").getValue()).toString();
Chat chat = new Chat(chatId, chatName, userId1, userId2);
chats.add(chat);
}
binding.chatsRv.setLayoutManager(new LinearLayoutManager(getContext()));
binding.chatsRv.setAdapter(new ChatsAdapter(chats));
}
@Override
public void onCancelled(@NonNull DatabaseError error) {
Toast.makeText(getContext(), "Failed to get user chats", Toast.LENGTH_SHORT).show();
}
});
}
}
告诉我，发生什么事了？