pragma solidity ^0.4.0; contract modifierTest{ bytes32 public blockhash; address public coinbase; uint public difficulty; uint public gaslimit; uint public blockNum; uint public timestamp; bytes public calldata1; uint public gas; address public sende
1.命名函数 var f = function double(){return x *2;} 该语句将函数绑定到变量f,而不是变量double 匿名的函数表达式: var f = function(x) {return x*2;} 2.关于eval创建局部变量 var y = "global"; function test(x){ if (x) { eval("var y = 'local';"); }; return y; } test(true); // &qu