import os,sys,json,io               #导入模块
def add_prefix_subfolders():        #定义函数名称
    final = 'd:\\FC\\project\\project\\copy_png'
    for copyfiles in os.listdir(final):
        copypath = os.path.join(final,copyfiles)
        with io.open(copypath,'r',encoding='utf-8') as fp:
            json_data = json.load(fp)
            #png,jpg 使用uuid plist使用rawTextureUuid
            uuid = json_data['uuid']
        if copyfiles!= sys.argv[0]:
            os.rename(os.path.join(final,copyfiles),os.path.join(final,uuid+"@"+copyfiles))  #子文件夹重命名
            print (copyfiles,"has been renamed successfully! New name is: ",uuid)

add_prefix_subfolders()            #调用定义的函数