w*****j
发帖数: 226 | 1 用自动机写的
求批判
个人觉得自动机的好处是可视化，只要图画对，代码不容易写错
corner case看得也比较清楚
enum State
{
ErrorState
{
@Override
public boolean isValid() { return false; }
},
EndState,
StartState
{
@Override
public State readDigit() { return DigitState; }
@Override
public State readPlus() { return PlusState; }
@Override
public State readMinus() { return MinusState; }
@Override
public State readPoin... 阅读全帖 |
|
w*****j
发帖数: 226 | 2 用自动机写的
求批判
个人觉得自动机的好处是可视化，只要图画对，代码不容易写错
corner case看得也比较清楚
enum State
{
ErrorState
{
@Override
public boolean isValid() { return false; }
},
EndState,
StartState
{
@Override
public State readDigit() { return DigitState; }
@Override
public State readPlus() { return PlusState; }
@Override
public State readMinus() { return MinusState; }
@Override
public State readPoin... 阅读全帖 |
|
