io/testnet ropsten (eth) blockchain explorer查看记录:https
arbitrum testnet v5新rpc url:https://kovan5
io/(网络设置成rinkeby testnet)2)打开下图连接钱包(rinkeby网络)3)
io/(需要xx上网)首先要下载metamask钱包.
io/(网络设置成rinkeby testnet)2)打开下图连接钱包(rinkeby网络)3)
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