check uri not start with /

WebCrawler/javbus.py

@@ -49,7 +49,10 @@ def getCover(htmlcode):  #获取封面链接
     image = doc('a.bigImage')
     uri = image.attr('href')
     if uri[0:4] != 'http':
+        if uri[0] == '/':
             return "https://www.javbus.com" + uri
+        else:
+            return "https://www.javbus.com/" + uri
     return uri
 def getRelease(htmlcode): #获取出版日期
     html = etree.fromstring(htmlcode, etree.HTMLParser())