doc文档转pdf;优化运行代码

app/get_temperature.py

@@ -16,16 +16,16 @@ print("Hello,World!")
 
 
 # 打开串口
-port = "COM7"
-baud = 9600
-timeout = 1
-try:
-    ser = serial.Serial(port=port, baudrate=baud, bytesize=8,parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE, timeout=1)
-    if ser.isOpen():
-        print("Port is open")
-except:
-    print("请检查串口是否被占用；或者串口出现异常！")
-    exit()
+def init(port, baudrate, timeout):
+    try:
+        ser = serial.Serial(port=port, baudrate=baudrate, bytesize=8,parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE, timeout=timeout)
+        if ser.isOpen():
+            print("Port is open")
+    except:
+        print("请检查串口是否被占用；或者串口出现异常！")
+        exit()
+
+    return ser
 
 # crc16 算法
 def crc16(data: bytes) -> int:
@@ -56,7 +56,7 @@ sed_msg = sed_msg + sendbytes
 print("发送帧：",sed_msg)
 
 
-def run():
+def run(ser):
     # 读取和解析串口数据
     while True:
         ser.write(bytes(sed_msg))

run.py

@@ -2,4 +2,5 @@ from app import get_temperature
 
 
 if __name__ == '__main__':
-    get_temperature.run()
+    ser = get_temperature.init("COM5", 9600, 1)
+    get_temperature.run(ser)