更新 gpio.py

tool/gpio.py

@@ -32,7 +32,7 @@ def check_disk():
 
 def check_memory():
 #   memory = "free -m|awk 'NR==2{print $2}'"
-    memory = "free -h|awk -F"Gi" 'NR==2{print $1}'|awk '{print $2}'"
+    memory = "free -h|awk -F'Gi' 'NR==2{print $1}'|awk '{print $2}'"
     ret = runcmd(memory, shell=True)
     m = int(ret[0].replace("\n", ""))
     print(m)