java問題，求解答，壹個破碎的砝碼壹個跳馬，代碼完全沒問題要求找出不符合編程規範的地方，越詳細越好。

1、變量命名。i，j，k，s，x1，x2，x3，x4從命名上無法直觀地體現出變量本身的含義來

2、魔法數。像40這種，應該做成常量

小的地方就是變量的作用域還可以註意壹下：

private boolean getWeight(int i, int j, int k, int s, int weight) {

int x1, x2, x3, x4;

for (x1 = -1; x1 <= 1; x1++)

for (x2 = -1; x2 <= 1; x2++)

for (x3 = -1; x3 <= 1; x3++)

for (x4 = -1; x4 <= 1; x4++)

if (x1 * i + x2 * j + x3 * k + x4 * s ==weight)

return true;

return false;

}

比如像這個，x1，x2，x3，x4都只在for循環中使用，為啥要聲明在外面呢

private boolean getWeight(int i, int j, int k, int s, int weight) {

for (int x1 = -1; x1 <= 1; x1++)

for (int x2 = -1; x2 <= 1; x2++)

for (int x3 = -1; x3 <= 1; x3++)

for (int x4 = -1; x4 <= 1; x4++)

if (x1 * i + x2 * j + x3 * k + x4 * s ==weight)

return true;

return false;

}