# ItemDefinition

## 导入类

It might be required for you to import the package if you encounter any issues (like casting an Array), so better be safe than sorry and add the import at the very top of the file.
```zenscript
import crafttweaker.api.item.ItemDefinition;
```


## 已实现的接口
ItemDefinition implements the following interfaces. That means all methods defined in these interfaces are also available in ItemDefinition

- [ItemLike](/vanilla/api/world/ItemLike)

## Casters

| Result Type                                | 是否隐藏 |
| ------------------------------------------ | ---- |
| [IItemstack](/vanilla/api/item/IItemStack) | true |

## 使用方式

:::group{name=getCommandString}

Return Type: string

```zenscript
// ItemDefinition.getCommandString() as string

myItemDefinition.getCommandString();
```

:::

:::group{name=getDefaultInstance}

Return Type: [IItemStack](/vanilla/api/item/IItemStack)

```zenscript
// ItemDefinition.getDefaultInstance() as IItemStack

myItemDefinition.getDefaultInstance();
```

:::

:::group{name=getRegistryName}

Return Type: [ResourceLocation](/vanilla/api/resource/ResourceLocation)

```zenscript
// ItemDefinition.getRegistryName() as ResourceLocation

myItemDefinition.getRegistryName();
```

:::


## 参数

| 名称                   | 类型                                             | 可获得  | 可设置   |
| -------------------- | ---------------------------------------------- | ---- | ----- |
| commandString #命令字符串 | string                                         | true | false |
| defaultInstance      | [IItemstack](/vanilla/api/item/IItemStack)     | true | false |
| registryName         | [资源位置](/vanilla/api/resource/ResourceLocation) | true | false |



名称	类型	可获得	可设置
名称 commandString #命令字符串	类型 string	可获得 true	可设置 false
名称 defaultInstance	类型 IItemstack	可获得 true	可设置 false
名称 registryName	类型资源位置	可获得 true	可设置 false