明日方舟数据库

升级计算

```rust

[test]

fn testcost() { println!("6 星从 001 升到 210 需要:"); let model = LevelUpCostDB::star6cash(); let exp = model.costdetail((0, 01), (2, 10)).unwrap(); println!("龙门币: {:?}", exp); let model = LevelUpCostDB::star6exp(); let exp = model.cost_detail((0, 01), (2, 10)).unwrap(); println!("经验值: {:?}", exp); } ```