选择 Ethereum Miannet选择 Custom RPC填好配置点SaveBSC:Network Name: Smart Chain New RPC URL: https://bsc-dataseed.binance.org/ ChainID: 56 Symbol: BNB Block Explorer URL: https://bscscan.com Polygon:Network Name: Polygon New RPC URL: https://polygon-rpc.com ChainID: 137 Symbol: MATIC Block Explorer URL: https://polygonscan.com/