edit

assets/layadmin/html/project/database/list.html

@@ -212,10 +212,15 @@
       var count = $('#list-tbody tr').length;
       let headerTop = $('#list-thead').offset().top; //获取表格头到文档顶部的距离
       $(window).scroll(function () {
-         if (count > 3 && (headerTop - $(window).scrollTop()) < 0) { //超过了
-             //$('#list-thead').addClass('table-header-fixed'); //添加样式，固定住表头
+         if (count > 3 && (headerTop - $(window).scrollTop()) < 100) { //超过了
+             $('#list-thead').addClass('table-header-fixed'); //添加样式，固定住表头
+
+             $('#list-thead th').each(function (k, v) {
+                  var width = $('#list-tbody td').eq(k).width() + 1;
+                  $(v).width(width);
+              });
          } else { //没超过
-             //$('#list-thead').removeClass('table-header-fixed'); //移除样式
+             $('#list-thead').removeClass('table-header-fixed'); //移除样式
          }
       });
     }