[{"title":"(2个子文件2.1MB)testcenter组播测试教程.rar","children":[{"title":"STC-TCC-340-0505-02-CN-MultiCastTesting.pdf <span style='color:#111;'>2.09MB</span>","children":null,"spread":false},{"title":"STC-TCC-330-0813-01-CN-RFC3918MultiCastCapacityTestingbyManualStreaming.pdf <span style='color:#111;'>1.08MB</span>","children":null,"spread":false}],"spread":true}]