Revert "添加工具类"

This reverts commit f2bbaaf704903486f3d61302920c86bc0ee6e4bf.
Revert "Revert "添加工具类""

This reverts commit c8842c70ca82cb167c8dd420fbf3a806baf5e64e.
Revert "Revert "Revert "添加工具类"""

This reverts commit aeaeda290a60b6de3a805f4e2a88d106d983259e.