python 給urllib.quote的字符串格式化出現ValueError: unsupported format character

比如

  taskdata = "url=http%3A%2F%2Fzjcmpp.hexin.com.cn%2Fsoft%2FTHS_freeldy.exe&save_path=%2F&user=%s"%("csdnuser")

出現error:  ValueError: unsupported format character 

解決辦法

  taskdata = "url=http%3A%2F%2Fzjcmpp.hexin.com.cn%2Fsoft%2FTHS_freeldy.exe&save_path=%2F&user={0}".format("csdnuser")

參考：http://stackoverflow.com/questions/8856523/valueerror-unsupported-format-character-while-forming-strings