test:
   [jmeter] Executing test plan: /Users/zc/Desktop/ydl.jmx ==> /Users/Desktop/jtl/TestReport201711230352.jtl
   [jmeter] Creating summariser <summary>
   [jmeter] Created the tree successfully using /Users/Desktop/ydl.jmx
   [jmeter] Starting the test @ Thu Nov 23 15:52:20 CST 2017 (1511423540355)
   [jmeter] Waiting for possible Shutdown/StopTestNow/Heapdump message on port 4445

卡在这里就不动了