优化退出信号传递流程

c/interpreter/interpreter.c

@@ -151,6 +151,7 @@ int exce(const int command,ctx *all_ctx)
     case QUIT:
         printf("shuting down\n");
         all_ctx->statue = -1;
+        write(all_ctx->fifofd[1],"q",1);
         return 1;
     }