Revert "删除validation.html来测试"

This reverts commit cc7b2a381e0c9e3b19de57922d50ed2ff309a2d5.
Revert "Revert "删除validation.html来测试""

This reverts commit 6ac3d115373e6871898a02a03f506b1ad8f45870.
Revert "Revert "Revert "删除validation.html来测试"""

This reverts commit e67fe38a640c0cc5d339cbc425ed5c59a748d082.