采用官方例子层序，连续发送数据，数据一会正常，一会出错，不知道是什么原因？
030000000700000??(03000000070000??(0300000007000???(0300000007000???(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(03000000070000000000000000000000003400AC)(0300
数据中问号部分内容就是数据出错了
