Solidity 货币单位，时间单位

Solidity 货币单位，时间单位

demo.sol（货币单位）：

pragma solidity ^0.4.0;contract EthUnit{uint  a = 1 ether;    // 货币单位。 数字与单位之间有空格。uint  b = 10 ** 18 wei;  // ** 表示次方uint  c = 1000 finney;uint  d = 1000000 szabo;function f1() constant public returns (bool){return a == b;  // true}function f2() constant public returns (bool){return a == c;  // true}function f3() constant public returns (bool){return a == d;  // true}function f4() pure public returns (bool){return 1 ether == 10 ** 18 wei;  // true}}