...## 推动有机体不断前进
* **Cheap fees** , **EVM equivalence** , and **Retroactive Public Goods Funding** are the ingredients required to produce motivated outwards growth into the frontier of crypto-economic networks.
* **便宜的费用、EVM 等效性和追溯性公共物品资助** ...
...
- 为游戏双方创建`MarkMintCap`对象
```rust
/// `x_address` and `o_address` are the account address of the two players.
public entry fun create_game(x_address: address, o_address: address, ctx: &mut TxContext) {
// TODO: Validate sender address, only GameAdmin can create ...
...l contains a value.
The value does not have the 'drop' ability and must be consumed before the function returns
```
这个错误和Move语言机制有关：之前拿出来的counter在函数结束时没有被正确处理。在测试结尾加上：
```
#[test]
...
fun t...