有只能合约功能的 BTC L2 好几个了哈，最知名的应该就是曾经的天王级项目RSK了吧，现在改名叫RIF了，币安上就有。还有一些不太知名，比如STX，也上了币安。 There are only a few contract functions of BTC L2 ha, the most well-known should be the former King Level Project RSK it, now renamed Rif, coin on there. There are some less well-known, such as STX, also on the Coin Ann. 只有几个合同功能的 BTC L2公顷，最著名的应该是前国王级项目 RSK 它，现在更名为 Rif，硬币上有。还有一些不太出名的，比如 STX，也就是安钱币。 With only a few contract features of the BTC L 2 ha, the most famous should be the former king-level Project RSK it...

有只能合约功能的 BTC L2 好几个了哈，最知名的应该就是曾经的天王级项目RSK了吧，现在改名叫RIF了，币安上就有。还有一些不太知名，比如STX，也上了币安。 There are only a few contract functions of BTC L2 ha, the most well-known should be the former King Level Project RSK it, now renamed Rif, coin on there. There are some less well-known, such as STX, also on the Coin Ann. 只有几个合同功能的 BTC L2公顷，最著名的应该是前国王级项目 RSK 它，现在更名为 Rif，硬币上有。还有一些不太出名的，比如 STX，也就是安钱币。 With only a few contract features of the BTC L 2 ha, the most famous should be the former king-level Project RSK it...