| Function Name | dcl-Tree-Clear |
|---|---|
| Syntax | (dcl-Tree-Clear
<CONTROL>) |
| Return Type | Boolean (T if successful; otherwise NIL) |
| Applies To | Tree |
此方法从树中删除所有项目。
Tree-Clear|
Tree-Clear |
| Function Name | dcl-Tree-Clear |
|---|---|
| Syntax | (dcl-Tree-Clear
<CONTROL>) |
| Return Type | Boolean (T if successful; otherwise NIL) |
| Applies To | Tree |
此方法从树中删除所有项目。