调用编辑接口不成功时，打印具体的信息

app/controllers/student_work_controller.rb

@@ -110,9 +110,9 @@ class StudentWorkController < ApplicationController
           #status 0:答案正确 -5program_test_ex 函数出错 -4judge代码出错 -3http超时 -2:编译错误 -1:答案错误 2:程序运行超时
           resultObj[:status] = -3
           CodeTests.create(:homework_id=>@homework.id,:language=>@homework.homework_detail_programing.language,:status=>-3,:wait_time=>tUsedtime,:student_work_id=>student_work.id)
-        rescue
+        rescue => e
           #-4 judge代码 出错
-          logger.debug "program_test_error 1"
+          logger.debug "program_test_error #{e}"
           resultObj[:status] = -4
           tmpstatus = -4
           CodeTests.create(:homework_id=>@homework.id,:language=>@homework.homework_detail_programing.language,:status=>tmpstatus,:time_used=>0,:wait_time=>0,:student_work_id=>student_work.id)