Question

web3.eth.compile.solidity(sourceString [, callback])

编译Solidity源代码。

参数：

• String - Solidity源代码。
• Function -（可选）回调函数，用于支持异步的方式执行[^async]。

返回值：

Object - 合约和编译信息。

示例：

var source = "" + 
    "contract test {\n" +
    "   function multiply(uint a) returns(uint d) {\n" +
    "       return a * 7;\n" +
    "   }\n" +
    "}\n";
var compiled = web3.eth.compile.solidity(source);
console.log(compiled); 
// {
  "test": {
    "code": "0x605280600c6000396000f3006000357c010000000000000000000000000000000000000000000000000000000090048063c6888fa114602e57005b60376004356041565b8060005260206000f35b6000600782029050604d565b91905056",
    "info": {
      "source": "contract test {\n\tfunction multiply(uint a) returns(uint d) {\n\t\treturn a * 7;\n\t}\n}\n",
      "language": "Solidity",
      "languageVersion": "0",
      "compilerVersion": "0.8.2",
      "abiDefinition": [
        {
          "constant": false,
          "inputs": [
            {
              "name": "a",
              "type": "uint256"
            }
          ],
          "name": "multiply",
          "outputs": [
            {
              "name": "d",
              "type": "uint256"
            }
          ],
          "type": "function"
        }
      ],
      "userDoc": {
        "methods": {}
      },
      "developerDoc": {
        "methods": {}
      }
    }
  }
}