diff --git a/drivers/lanzou/help.go b/drivers/lanzou/help.go
index f2599b283..e702ebcac 100644
--- a/drivers/lanzou/help.go
+++ b/drivers/lanzou/help.go
@@ -170,23 +170,17 @@ var findKVReg = regexp.MustCompile(`'(.+?)':('?([^' },]*)'?)`) // 拆分kv
 
 // 根据key查询js变量
 func findJSVarFunc(key, data string) string {
-	var values []string
-	if key != "sasign" {
-		values = regexp.MustCompile(`var ` + key + `\s*=\s*['"]?(.+?)['"]?;`).FindStringSubmatch(data)
-	} else {
-		matches := regexp.MustCompile(`var `+key+`\s*=\s*['"]?(.+?)['"]?;`).FindAllStringSubmatch(data, -1)
-		if len(matches) == 3 {
-			values = matches[1]
-		} else {
-			if len(matches) > 0 {
-				values = matches[0]
-			}
-		}
-	}
-	if len(values) == 0 {
+	re := regexp.MustCompile(`var\s+` + regexp.QuoteMeta(key) + `\s*=\s*['"]?([^'"]*)['"]?\s*;`)
+	matches := re.FindAllStringSubmatch(data, -1)
+	if len(matches) == 0 {
 		return ""
 	}
-	return values[1]
+	for i := len(matches) - 1; i >= 0; i-- {
+		if matches[i][1] != "" {
+			return matches[i][1]
+		}
+	}
+	return matches[len(matches)-1][1]
 }
 
 var findFunction = regexp.MustCompile(`(?ims)^function[^{]+`)
diff --git a/drivers/lanzou/util.go b/drivers/lanzou/util.go
index b0545bbd5..22ea45146 100644
--- a/drivers/lanzou/util.go
+++ b/drivers/lanzou/util.go
@@ -313,7 +313,7 @@ var findSubFolderReg = regexp.MustCompile(`(?i)(?:folderlink|mbxfolder).+href="/
 var findDownPageParamReg = regexp.MustCompile(`<iframe.*?src="(.+?)"`)
 
 // 获取文件ID
-var findFileIDReg = regexp.MustCompile(`'/ajaxm\.php\?file=(\d+)'`)
+var findFileIDReg = regexp.MustCompile(`'/ajax(?:file|m)\.php\?file=(\d+)'`)
 
 // 获取分享链接主界面
 func (d *LanZou) getShareUrlHtml(shareID string) (string, error) {
@@ -412,15 +412,13 @@ func (d *LanZou) getFilesByShareUrl(shareID, pwd string, sharePageData string) (
 		}
 		param["p"] = pwd
 
-		fileIDs := findFileIDReg.FindStringSubmatch(sharePageData)
-		var fileID string
-		if len(fileIDs) > 1 {
-			fileID = fileIDs[1]
-		} else {
+		matches := findFileIDReg.FindStringSubmatch(sharePageData)
+		if len(matches) < 2 {
 			return nil, fmt.Errorf("not find file id")
 		}
+		ajaxUrl := d.ShareUrl + matches[0][1:len(matches[0])-1]
 		var resp FileShareInfoAndUrlResp[string]
-		_, err = d.post(d.ShareUrl+"/ajaxm.php?file="+fileID, func(req *resty.Request) { req.SetFormData(param) }, &resp)
+		_, err = d.post(ajaxUrl, func(req *resty.Request) { req.SetFormData(param) }, &resp)
 		if err != nil {
 			return nil, err
 		}
@@ -444,15 +442,13 @@ func (d *LanZou) getFilesByShareUrl(shareID, pwd string, sharePageData string) (
 			return nil, err
 		}
 
-		fileIDs := findFileIDReg.FindStringSubmatch(nextPageData)
-		var fileID string
-		if len(fileIDs) > 1 {
-			fileID = fileIDs[1]
-		} else {
+		matches := findFileIDReg.FindStringSubmatch(nextPageData)
+		if len(matches) < 2 {
 			return nil, fmt.Errorf("not find file id")
 		}
+		ajaxUrl := d.ShareUrl + matches[0][1:len(matches[0])-1]
 		var resp FileShareInfoAndUrlResp[int]
-		_, err = d.post(d.ShareUrl+"/ajaxm.php?file="+fileID, func(req *resty.Request) { req.SetFormData(param) }, &resp)
+		_, err = d.post(ajaxUrl, func(req *resty.Request) { req.SetFormData(param) }, &resp)
 		if err != nil {
 			return nil, err
 		}