What is the benefit in using 'unset'?

在使用“撤消”的好处是什么？

youdao

For example, if you don't like grids, use unset grid.

例如，如果您不想要网格，使用unsetgrid 。

youdao

So, you might see a value of or 0.0 when the field is unset.

因此，该字段未设置时，您可能会看到值或 0.0。

youdao

Unset your variables to free memory, especially large arrays.

注销那些不用的变量尤其是大数组，以便释放内存。

youdao

If this is set, even root cannot delete the file until the attribute is unset.

设置完成后，即使是root用户也不能删除文件，直到属性解除。

youdao

If this is set, even root cannot delete the file until the attribute is unset.

设置完成后，即使是root用户也不能删除文件，直到属性解除。

youdao