Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
我看demo有支持long range的例子，但是没看到编码方式是多少，请问下 该方式下默认的编码是S=2,还是S=8.