diff --git a/Day16-Day20/Web前端概述.md b/Day16-20/Web前端概述.md
similarity index 100%
rename from Day16-Day20/Web前端概述.md
rename to Day16-20/Web前端概述.md
diff --git a/Day16-Day20/classical_layout.html b/Day16-20/classical_layout.html
similarity index 100%
rename from Day16-Day20/classical_layout.html
rename to Day16-20/classical_layout.html
diff --git a/Day16-Day20/example.html b/Day16-20/example.html
similarity index 100%
rename from Day16-Day20/example.html
rename to Day16-20/example.html
diff --git a/Day16-Day20/form.html b/Day16-20/form.html
similarity index 100%
rename from Day16-Day20/form.html
rename to Day16-20/form.html
diff --git a/Day16-Day20/form_and_table.html b/Day16-20/form_and_table.html
similarity index 100%
rename from Day16-Day20/form_and_table.html
rename to Day16-20/form_and_table.html
diff --git a/Day16-Day20/img/Thumbs.db b/Day16-20/img/Thumbs.db
similarity index 100%
rename from Day16-Day20/img/Thumbs.db
rename to Day16-20/img/Thumbs.db
diff --git a/Day16-Day20/img/a1.jpg b/Day16-20/img/a1.jpg
similarity index 100%
rename from Day16-Day20/img/a1.jpg
rename to Day16-20/img/a1.jpg
diff --git a/Day16-Day20/img/a2.jpg b/Day16-20/img/a2.jpg
similarity index 100%
rename from Day16-Day20/img/a2.jpg
rename to Day16-20/img/a2.jpg
diff --git a/Day16-Day20/img/a3.jpg b/Day16-20/img/a3.jpg
similarity index 100%
rename from Day16-Day20/img/a3.jpg
rename to Day16-20/img/a3.jpg
diff --git a/Day16-Day20/jquery3.html b/Day16-20/jquery3.html
similarity index 100%
rename from Day16-Day20/jquery3.html
rename to Day16-20/jquery3.html
diff --git a/Day16-Day20/js/jquery.min.js b/Day16-20/js/jquery.min.js
similarity index 100%
rename from Day16-Day20/js/jquery.min.js
rename to Day16-20/js/jquery.min.js
diff --git a/Day16-Day20/qq_link.html b/Day16-20/qq_link.html
similarity index 100%
rename from Day16-Day20/qq_link.html
rename to Day16-20/qq_link.html
diff --git a/Day16-Day20/res/browser-joke-1.jpeg b/Day16-20/res/browser-joke-1.jpeg
similarity index 100%
rename from Day16-Day20/res/browser-joke-1.jpeg
rename to Day16-20/res/browser-joke-1.jpeg
diff --git a/Day16-Day20/res/browser-joke-2.jpg b/Day16-20/res/browser-joke-2.jpg
similarity index 100%
rename from Day16-Day20/res/browser-joke-2.jpg
rename to Day16-20/res/browser-joke-2.jpg
diff --git a/Day16-Day20/res/browser-joke-3.jpg b/Day16-20/res/browser-joke-3.jpg
similarity index 100%
rename from Day16-Day20/res/browser-joke-3.jpg
rename to Day16-20/res/browser-joke-3.jpg
diff --git a/Day16-Day20/res/dom-page.png b/Day16-20/res/dom-page.png
similarity index 100%
rename from Day16-Day20/res/dom-page.png
rename to Day16-20/res/dom-page.png
diff --git a/Day16-Day20/res/dom-tree.png b/Day16-20/res/dom-tree.png
similarity index 100%
rename from Day16-Day20/res/dom-tree.png
rename to Day16-20/res/dom-tree.png
diff --git a/Day26-Day30/res/IMG_0358.PNG b/Day26-30/res/IMG_0358.PNG
similarity index 100%
rename from Day26-Day30/res/IMG_0358.PNG
rename to Day26-30/res/IMG_0358.PNG
diff --git a/Day26-Day30/res/IMG_0360.png b/Day26-30/res/IMG_0360.png
similarity index 100%
rename from Day26-Day30/res/IMG_0360.png
rename to Day26-30/res/IMG_0360.png
diff --git a/Day26-Day30/res/IMG_0361.png b/Day26-30/res/IMG_0361.png
similarity index 100%
rename from Day26-Day30/res/IMG_0361.png
rename to Day26-30/res/IMG_0361.png
diff --git a/Day26-Day30/res/IMG_0362.png b/Day26-30/res/IMG_0362.png
similarity index 100%
rename from Day26-Day30/res/IMG_0362.png
rename to Day26-30/res/IMG_0362.png
diff --git a/Day26-Day30/res/IMG_0363.png b/Day26-30/res/IMG_0363.png
similarity index 100%
rename from Day26-Day30/res/IMG_0363.png
rename to Day26-30/res/IMG_0363.png
diff --git a/Day26-Day30/res/IMG_0364.png b/Day26-30/res/IMG_0364.png
similarity index 100%
rename from Day26-Day30/res/IMG_0364.png
rename to Day26-30/res/IMG_0364.png
diff --git a/Day26-Day30/res/IMG_0365.png b/Day26-30/res/IMG_0365.png
similarity index 100%
rename from Day26-Day30/res/IMG_0365.png
rename to Day26-30/res/IMG_0365.png
diff --git a/Day26-Day30/res/IMG_0366.png b/Day26-30/res/IMG_0366.png
similarity index 100%
rename from Day26-Day30/res/IMG_0366.png
rename to Day26-30/res/IMG_0366.png
diff --git a/Day26-Day30/res/redis-data-type.png b/Day26-30/res/redis-data-type.png
similarity index 100%
rename from Day26-Day30/res/redis-data-type.png
rename to Day26-30/res/redis-data-type.png
diff --git a/Day26-Day30/关系型数据库入门.md b/Day26-30/关系型数据库入门.md
similarity index 100%
rename from Day26-Day30/关系型数据库入门.md
rename to Day26-30/关系型数据库入门.md
diff --git a/Day26-Day30/非关系型数据库入门.md b/Day26-30/非关系型数据库入门.md
similarity index 100%
rename from Day26-Day30/非关系型数据库入门.md
rename to Day26-30/非关系型数据库入门.md