diff --git a/static/img_eg/ex_img/count.png b/static/img_eg/ex_img/count.png
deleted file mode 100644
index 42423ce..0000000
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diff --git a/static/img_eg/ex_img/pk.png b/static/img_eg/ex_img/pk.png
deleted file mode 100644
index 51b4e3b..0000000
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diff --git a/static/img_eg/ex_img/分组.png b/static/img_eg/ex_img/分组.png
deleted file mode 100644
index db0f438..0000000
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diff --git a/static/logo改_3.png b/static/logo.png
similarity index 100%
rename from static/logo改_3.png
rename to static/logo.png
diff --git a/static/提交.jpg b/static/submit.jpg
similarity index 100%
rename from static/提交.jpg
rename to static/submit.jpg
diff --git a/templates/chart/Basic.html b/templates/chart/Basic.html
index e677b0a..b463e98 100644
--- a/templates/chart/Basic.html
+++ b/templates/chart/Basic.html
@@ -50,7 +50,7 @@
upload
diff --git a/templates/page/index.html b/templates/page/index.html
index faec845..54cafad 100644
--- a/templates/page/index.html
+++ b/templates/page/index.html
@@ -13,7 +13,7 @@
