在網上查找有事件觸發方式和定時器查詢的方式。
GPS輸出的資料不是固定長度，是通過逗號來劃分的。
GPS資料是每秒鐘發送下面這么多資料的
大家有沒有好的建議或者參考代碼？
$GNRMC,045015.00,A,3109.73671,N,12124.75372,E,0.004,,141117,,,D*66
$GNVTG,,T,,M,0.004,N,0.007,K,D*3B
$GNGNS,045015.00,3109.73671,N,12124.75372,E,RR,15,0.72,5.8,9.7,1.0,0000*7F
$GNGGA,045015.00,3109.73671,N,12124.75372,E,4,12,0.72,5.8,M,9.7,M,1.0,0000*57
$GNGSA,A,3,02,05,13,15,20,21,29,30,,,,,1.35,0.72,1.15*13
$GNGSA,A,3,78,79,69,84,83,85,70,,,,,,1.35,0.72,1.15*18
$GPGSV,3,1,11,02,40,139,45,05,51,047,48,06,04,137,,07,01,034,*7F
$GPGSV,3,2,11,13,85,027,46,15,58,244,49,20,48,316,46,21,16,317,36*7A
$GPGSV,3,3,11,24,08,186,,29,40,256,49,30,19,055,41*45
$GLGSV,3,1,11,68,09,053,25,69,45,014,44,70,38,290,43,71,01,257,20*6F
$GLGSV,3,2,11,78,11,044,38,79,20,087,47,80,07,145,28,83,15,172,41*6B
$GLGSV,3,3,11,84,62,218,45,85,41,316,50,,,,51*6A
$GNGLL,3109.73671,N,12124.75372,E,045015.00,A,D*78
$GNGST,045015.00,6.9,,,,0.010,0.010,0.010*6C
$GNZDA,045015.00,14,11,2017,00,00*7C
另外還有一個問題請教：通過這條陳述句
Dim ports As String() = SerialPort.GetPortNames()
獲得com號以后，這條陳述句
buf = SerialPort1.ReadExisting.ToString
是不是就不能用了？
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