Example demonstrating SPCOMM sending and receiving data

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// Kaersoft Karl Software
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// http://www.kaer.cn/default.aspx
// Email:[email protected]
// QQ:54076683
// Delphi 7.0 PASS
// Commissioning person: JPYC
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//Program function
// Demonstrates an example of SPCOMM sending and receiving data
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//Implementation idea: Automatically open serial port 1 when opening the form, and automatically close the serial port when closing.
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