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# \$1skip
<a name="skip"></a>

在 Amazon DocumentDB 中，運算`$skip`子可用來偏移查詢結果的起點，讓您擷取相符文件的特定子集。這在您要擷取後續結果頁面的分頁案例中特別有用。

**參數**
+ `skip`：傳回其餘文件之前要略過的文件數量。

## 範例 (MongoDB Shell)
<a name="skip-examples"></a>

下列範例示範如何使用 `$skip`運算子從集合擷取第二個結果頁面 （文件 11-20)。

**建立範例文件**

```
db.collection.insert([
  { "name": "Document 1" },
  { "name": "Document 2" },
  { "name": "Document 3" },
  { "name": "Document 4" },
  { "name": "Document 5" },
  { "name": "Document 6" },
  { "name": "Document 7" },
  { "name": "Document 8" },
  { "name": "Document 9" },
  { "name": "Document 10" },
  { "name": "Document 11" },
  { "name": "Document 12" },
  { "name": "Document 13" },
  { "name": "Document 14" },
  { "name": "Document 15" },
  { "name": "Document 16" },
  { "name": "Document 17" },
  { "name": "Document 18" },
  { "name": "Document 19" },
  { "name": "Document 20" }
]);
```

**查詢範例**

```
db.collection.find({}, { "name": 1 })
             .skip(10)
             .limit(10);
```

**輸出**

```
[
  { "_id" : ObjectId("..."), "name" : "Document 11" },
  { "_id" : ObjectId("..."), "name" : "Document 12" },
  { "_id" : ObjectId("..."), "name" : "Document 13" },
  { "_id" : ObjectId("..."), "name" : "Document 14" },
  { "_id" : ObjectId("..."), "name" : "Document 15" },
  { "_id" : ObjectId("..."), "name" : "Document 16" },
  { "_id" : ObjectId("..."), "name" : "Document 17" },
  { "_id" : ObjectId("..."), "name" : "Document 18" },
  { "_id" : ObjectId("..."), "name" : "Document 19" },
  { "_id" : ObjectId("..."), "name" : "Document 20" }
]
```

## 程式碼範例
<a name="skip-code"></a>

若要檢視使用 `$skip`命令的程式碼範例，請選擇您要使用的語言標籤：

------
#### [ Node.js ]

```
const { MongoClient } = require('mongodb');

async function main() {
  const client = await MongoClient.connect('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false');
  const db = client.db('test');
  const collection = db.collection('collection');

  const results = await collection.find({}, { projection: { name: 1 } })
                                 .skip(10)
                                 .limit(10)
                                 .toArray();

  console.log(results);

  await client.close();
}

main();
```

------
#### [ Python ]

```
from pymongo import MongoClient

def main():
    client = MongoClient('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false')
    db = client.mydatabase
    collection = db.collection

    results = list(collection.find({}, {'name': 1})
                   .skip(10)
                   .limit(10))

    print(results)

    client.close()

if __name__ == '__main__':
    main()
```

------