diff --git a/README.md b/README.md
index df61e76..ab6aeeb 100644
--- a/README.md
+++ b/README.md
@@ -44,14 +44,14 @@ Markdown 文档自动即时渲染为微信图文，让你不再为微信文章
 
 ## 目前支持哪些图床
 
-| #   | 图床        | 使用时是否需要配置                                                 | 备注                                                                                                                   |
-| --- | ----------- | ------------------------------------------------------------------ | ---------------------------------------------------------------------------------------------------------------------- |
-| 1   | 默认        | 否                                                                 | -                                                                                                                      |
-| 2   | Gitee       | 配置 `Repo`、`Token` 参数                                          | 图片超过 1MB 无法正常展示                                                                                              |
-| 3   | GitHub      | 配置 `Repo`、`Token` 参数                                          | [如何获取 GitHub token？](https://docs.github.com/en/github/authenticating-to-github/creating-a-personal-access-token) |
-| 4   | 阿里云 OSS  | 配置 `AccessKey ID`、`AccessKey Secret`、`Bucket`、`Region` 等参数 | [如何使用阿里云 OSS？](https://help.aliyun.com/document_detail/31883.html)                                             |
-| 5   | 腾讯云 COS  | 配置 `SecretId`、`SecretKey`、`Bucket`、`Region` 等参数            | [如何使用腾讯云 COS？](https://cloud.tencent.com/document/product/436/38484)                                           |
-| 6   | 七牛云 Kodo | 配置 `AccessKey`、`SecretKey`、`Bucket`、`Domain`、`Region` 等参数 | [如何使用七牛云 Kodo？](https://developer.qiniu.com/kodo)                                                              |
+| #   | 图床                                            | 使用时是否需要配置                                               | 备注                                                                                                                   |
+| --- | ----------------------------------------------- | ---------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------- |
+| 1   | 默认                                            | 否                                                               | -                                                                                                                      |
+| 2   | [Gitee](https://gitee.com)                      | 配置 `Repo`、`Token` 参数                                        | 图片超过 1MB 无法正常展示                                                                                              |
+| 3   | [GitHub](https://github.com)                    | 配置 `Repo`、`Token` 参数                                        | [如何获取 GitHub token？](https://docs.github.com/en/github/authenticating-to-github/creating-a-personal-access-token) |
+| 4   | [阿里云](https://www.aliyun.com/product/oss)    | 配置 `AccessKey ID`、`AccessKey Secret`、`Bucket`、`Region` 参数 | [如何使用阿里云 OSS？](https://help.aliyun.com/document_detail/31883.html)                                             |
+| 5   | [腾讯云](https://cloud.tencent.com/act/pro/cos) | 配置 `SecretId`、`SecretKey`、`Bucket`、`Region` 参数            | [如何使用腾讯云 COS？](https://cloud.tencent.com/document/product/436/38484)                                           |
+| 6   | [七牛云](https://www.qiniu.com/products/kodo)   | 配置 `AccessKey`、`SecretKey`、`Bucket`、`Domain`、`Region` 参数 | [如何使用七牛云 Kodo？](https://developer.qiniu.com/kodo)                                                              |
 
 ![select-and-change-color-theme](./public/assets/images/select-and-change-color-theme.gif)
 
diff --git a/src/api/file.js b/src/api/file.js
index 9798b0f..afe3491 100644
--- a/src/api/file.js
+++ b/src/api/file.js
@@ -41,7 +41,7 @@ function fileUpload(content, file) {
     }
 }
 
-function getGitHubCommonConfig(username, repo, branch, token) {
+function getDir() {
     const date = new Date();
     const dir =
         date.getFullYear() +
@@ -49,6 +49,17 @@ function getGitHubCommonConfig(username, repo, branch, token) {
         (date.getMonth() + 1).toString().padStart(2, "0") +
         "/" +
         date.getDate().toString().padStart(2, "0");
+    return dir;
+}
+
+function getDateFilename(filename) {
+    const dateFilename =
+        new Date().getTime() + "-" + uuidv4() + "." + filename.split(".")[1];
+    return dateFilename;
+}
+
+function getGitHubCommonConfig(username, repo, branch, token) {
+    const dir = getDir();
     return {
         method: "put",
         headers: {
@@ -99,8 +110,7 @@ function getQiniuToken(accessKey, secretKey, putPolicy) {
 async function ghFileUpload(content, filename) {
     const isDefault = localStorage.getItem("imgHost") !== "github";
     const config = isDefault ? getDefaultConfig() : getGitHubConfig();
-    const dateFilename =
-        new Date().getTime() + "-" + uuidv4() + "." + filename.split(".")[1];
+    const dateFilename = getDateFilename(filename);
     const res = await fetch({
         url: config.url + dateFilename,
         method: config.method,
@@ -127,15 +137,8 @@ async function giteeUpload(content, filename) {
         .split("/");
     const username = repoUrl[0];
     const repo = repoUrl[1];
-    const date = new Date();
-    const dir =
-        date.getFullYear() +
-        "/" +
-        (date.getMonth() + 1).toString().padStart(2, "0") +
-        "/" +
-        date.getDate().toString().padStart(2, "0");
-    const dateFilename =
-        new Date().getTime() + "-" + uuidv4() + "." + filename.split(".")[1];
+    const dir = getDir();
+    const dateFilename = getDateFilename(filename);
     const res = await fetch({
         url: `https://gitee.com/api/v5/repos/${username}/${repo}/contents/${dir}/${dateFilename}`,
         method: "POST",
@@ -150,8 +153,7 @@ async function giteeUpload(content, filename) {
 }
 
 async function aliOSSFileUpload(content, filename) {
-    const dateFilename =
-        new Date().getTime() + "-" + uuidv4() + "." + filename.split(".")[1];
+    const dateFilename = getDateFilename(filename);
     const aliOSSConfig = JSON.parse(localStorage.getItem("aliOSSConfig"));
     const buffer = Buffer(content, "base64");
     try {
@@ -174,8 +176,7 @@ async function aliOSSFileUpload(content, filename) {
 }
 
 async function txCOSFileUpload(file) {
-    const dateFilename =
-        new Date().getTime() + "-" + uuidv4() + "." + file.name.split(".")[1];
+    const dateFilename = getDateFilename(file.name);
     const txCOSConfig = JSON.parse(localStorage.getItem("txCOSConfig"));
     const cos = new COS({
         SecretId: txCOSConfig.secretId,
@@ -224,13 +225,7 @@ async function qiniuUpload(file) {
         putPolicy
     );
     const dir = qiniuConfig.path ? qiniuConfig.path + "/" : "";
-    const dateFilename =
-        dir +
-        new Date().getTime() +
-        "-" +
-        uuidv4() +
-        "." +
-        file.name.split(".")[1];
+    const dateFilename = dir + getDateFilename(file.name);
     const config = {
         region: qiniuConfig.region,
     };