# Provider 方法

- [Connect（连接）](https://support.backpack.exchange/support-docs/cn/qian-bao/ji-shu-wen-dang/deeplinks/provider-fang-fa/connect-lian-jie.md)
- [Disconnect（断开连接）](https://support.backpack.exchange/support-docs/cn/qian-bao/ji-shu-wen-dang/deeplinks/provider-fang-fa/disconnect-duan-kai-lian-jie.md)
- [SignAndSendTransaction（签名并发送交易）](https://support.backpack.exchange/support-docs/cn/qian-bao/ji-shu-wen-dang/deeplinks/provider-fang-fa/signandsendtransaction-qian-ming-bing-fa-song-jiao-yi.md)
- [SignAllTransactions（批量签名交易）](https://support.backpack.exchange/support-docs/cn/qian-bao/ji-shu-wen-dang/deeplinks/provider-fang-fa/signalltransactions-pi-liang-qian-ming-jiao-yi.md)
- [SignTransaction（签名单笔交易）](https://support.backpack.exchange/support-docs/cn/qian-bao/ji-shu-wen-dang/deeplinks/provider-fang-fa/signtransaction-qian-ming-dan-bi-jiao-yi.md)
- [SignMessage（签名消息）](https://support.backpack.exchange/support-docs/cn/qian-bao/ji-shu-wen-dang/deeplinks/provider-fang-fa/signmessage-qian-ming-xiao-xi.md)


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