Merge branch 'master' into dev

wangzhengquan

2020-10-13 32be9184bcab815ed1795889612a2c2c84a17334

 test/test.c

New file
@@ -0,0 +1,13 @@
#include "usg_common.h"
 
int  test() {
   static int count = 0;
   count++;
   return count;
}
int main() {

 
   printf("%d\n", test());
   printf("%d\n", test());
}