Question

10.10. web3 编译合约

10.10.1. solc.compile

			
pragma solidity ^0.4.0;
contract HelloWorldContract {
  function sayHi() constant returns (string){
    return 'Hello World';
  }
}			
			
			

			
const fs = require ('fs');
const solc = require ('solc');
const input = fs.readFileSync('HelloWorldContract.sol');
const output = solc.compile(input.toString(), 1);
for (var contractName in output.contracts){
 console.log(contractName + ': ' + output.contracts[contractName].bytecode)
}
			
			

			
> const fs = require ('fs');
undefined
> const solc = require ('solc');

undefined
> const input = fs.readFileSync('HelloWorldContract.sol');
undefined
> const output = solc.compile(input.toString(), 1);

undefined
> for (var contractName in output.contracts){
...  console.log(contractName + ': ' + output.contracts[contractName].bytecode)
... }
:HelloWorldContract: 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
undefined