HI,
regarding to your first question "移植过程中出现if语句缺少“}”以及“）”的错误", please upload your entire project in zip format instead of the separate files. I will check it directly from my side.
for your second question "我想定义一个标志位，比如用来检测中断或者计数，请问怎么定义，", you can define a static type global variable/counter in the interrupt file, increase the counter for each interrupt comes.
Have a great day,
Jennie Zhang
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