blockchain | truffle console 访问合约

今天用truffle console来测试昨天部署的合约。
一开始报错invalid opcode，查了一下还是创世区块配置的问题，这里贴上最新的配置文件：

{
    "config":{
        "chainId": 15,
        "homesteadBlock": 0,
        "byzantiumBlock": 0,
        "constantinopleBlock": 0,
        "eip150Block": 0,
        "eip155Block": 0,
        "eip158Block": 0
    },
    "nonce": "0x0000000000000033",
    "timestamp": "0x0",
    "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
    "gaslimit": "0x8000000",
    "difficulty": "0x100",
    "mixhash": "0x0000000000000000000000000000000000000000000000000000000000000000",
    "coinbase": "0x3333333333333333333333333333333333333333",
    "alloc": {}
}

然后测试调用：