第一个没办法，有点鸡肋。
{"param":{"index":1},"id":42,"cmd":"GLZT240329_2"}
{"param":{"num":60,"index":1},"id":42,"cmd":"GLZT240329_3"}
{"param":{"index":2},"id":42,"cmd":"GLZT240329_2"}
{"param":{"p":2,"num":60,"index":2},"id":42,"cmd":"GLZT240329_3"}
{"param":{"index":3},"id":42,"cmd":"GLZT240329_2"}
{"param":{"num":60,"index":3},"id":42,"cmd":"GLZT240329_3"}