token = "-----------------------------"#自己填到微信设置里面的token
    nonce = request.GET["nonce"]
    timestamp = request.GET["timestamp"]
    msg_sign = request.GET["signature"]
    arr1 = [token,timestamp,nonce]
    arr1.sort()
    tempstr = "".join(arr1)
    sha1 = hashlib.sha1()
    sha1.update(tempstr.encode(‘utf-8‘))
    compute_sign = sha1.hexdigest()
    if msg_sign == compute_sign:
        return HttpResponse(request.GET["echostr"])