[{"itemType":"task","number":"1","published_number":"1","title":"\u4ecelinux\u5185\u6838\u89d2\u5ea6\u770blinux\u7cfb\u7edf\u7f16\u7a0b","result":"","resultStatus":"","lock":false,"status":"published","taskId":"4815","isOptional":"0","type":"video","isTaskFree":"0","watchLimitRemaining":false,"replayStatus":"","activityStartTimeStr":"","activityStartTime":"","activityLength":"59:27","activityEndTime":"","fileStorage":"","isTaskTryLookable":0,"isSingleTaskLesson":true},{"itemType":"task","number":"2","published_number":"2","title":"\u8fdb\u7a0b\u903b\u8f91\u7a7a\u95f4\u8bfe\u5802\u7b54\u7591","result":"","resultStatus":"","lock":false,"status":"published","taskId":"4816","isOptional":"0","type":"video","isTaskFree":"0","watchLimitRemaining":false,"replayStatus":"","activityStartTimeStr":"","activityStartTime":"","activityLength":"04:26","activityEndTime":"","fileStorage":"","isTaskTryLookable":0,"isSingleTaskLesson":true},{"itemType":"task","number":"3","published_number":"3","title":"fork\u7cfb\u7edf\u8c03\u7528\u5b9e\u73b0\u5256\u6790","result":"","resultStatus":"","lock":false,"status":"published","taskId":"4817","isOptional":"0","type":"video","isTaskFree":"0","watchLimitRemaining":false,"replayStatus":"","activityStartTimeStr":"","activityStartTime":"","activityLength":"57:33","activityEndTime":"","fileStorage":"","isTaskTryLookable":0,"isSingleTaskLesson":true},{"itemType":"task","number":"4","published_number":"4","title":"fork\u7cfb\u7edf\u8fdb\u7a0b\u6d4b\u8bd5\u6846\u67b6\u53ca\u5b66\u4e60\u65b9\u6cd5\u8bf4\u660e","result":"","resultStatus":"","lock":false,"status":"published","taskId":"4818","isOptional":"0","type":"video","isTaskFree":"0","watchLimitRemaining":false,"replayStatus":"","activityStartTimeStr":"","activityStartTime":"","activityLength":"20:24","activityEndTime":"","fileStorage":"","isTaskTryLookable":0,"isSingleTaskLesson":true},{"itemType":"task","number":"5","published_number":"5","title":"\u50f5\u5c38\u8fdb\u7a0b\u5b64\u513f\u8fdb\u7a0b\u77e5\u8bc6\u70b9","result":"","resultStatus":"","lock":false,"status":"published","taskId":"4819","isOptional":"0","type":"video","isTaskFree":"0","watchLimitRemaining":false,"replayStatus":"","activityStartTimeStr":"","activityStartTime":"","activityLength":"08:10","activityEndTime":"","fileStorage":"","isTaskTryLookable":0,"isSingleTaskLesson":true},{"itemType":"task","number":"6","published_number":"6","title":"\u4e2d\u5348\u8bfe\u7a0b\u590d\u4e60 ","result":"","resultStatus":"","lock":false,"status":"published","taskId":"4820","isOptional":"0","type":"video","isTaskFree":"0","watchLimitRemaining":false,"replayStatus":"","activityStartTimeStr":"","activityStartTime":"","activityLength":"21:22","activityEndTime":"","fileStorage":"","isTaskTryLookable":0,"isSingleTaskLesson":true},{"itemType":"task","number":"7","published_number":"7","title":"ue\u7f16\u8f91\u5f00\u53d1\u73af\u5883","result":"","resultStatus":"","lock":false,"status":"published","taskId":"4821","isOptional":"0","type":"video","isTaskFree":"0","watchLimitRemaining":false,"replayStatus":"","activityStartTimeStr":"","activityStartTime":"","activityLength":"02:40","activityEndTime":"","fileStorage":"","isTaskTryLookable":0,"isSingleTaskLesson":true},{"itemType":"task","number":"8","published_number":"8","title":"\u591a\u8fdb\u7a0b\u4e0b\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26 ","result":"","resultStatus":"","lock":false,"status":"published","taskId":"4822","isOptional":"0","type":"video","isTaskFree":"0","watchLimitRemaining":false,"replayStatus":"","activityStartTimeStr":"","activityStartTime":"","activityLength":"20:41","activityEndTime":"","fileStorage":"","isTaskTryLookable":0,"isSingleTaskLesson":true},{"itemType":"task","number":"9","published_number":"9","title":"ork+execve ","result":"","resultStatus":"","lock":false,"status":"published","taskId":"4823","isOptional":"0","type":"video","isTaskFree":"0","watchLimitRemaining":false,"replayStatus":"","activityStartTimeStr":"","activityStartTime":"","activityLength":"24:28","activityEndTime":"","fileStorage":"","isTaskTryLookable":0,"isSingleTaskLesson":true},{"itemType":"task","number":"10","published_number":"10","title":"execv\u51fd\u6570\u65cf\u7528\u6cd5\u5c55\u793a","result":"","resultStatus":"","lock":false,"status":"published","taskId":"4824","isOptional":"0","type":"video","isTaskFree":"0","watchLimitRemaining":false,"replayStatus":"","activityStartTimeStr":"","activityStartTime":"","activityLength":"30:05","activityEndTime":"","fileStorage":"","isTaskTryLookable":0,"isSingleTaskLesson":true},{"itemType":"task","number":"11","published_number":"11","title":"\u8fdb\u7a0b\u7ec8\u6b62\u65b9\u6cd5","result":"","resultStatus":"","lock":false,"status":"published","taskId":"4825","isOptional":"0","type":"video","isTaskFree":"0","watchLimitRemaining":false,"replayStatus":"","activityStartTimeStr":"","activityStartTime":"","activityLength":"21:22","activityEndTime":"","fileStorage":"","isTaskTryLookable":0,"isSingleTaskLesson":true},{"itemType":"task","number":"12","published_number":"12","title":"\u5b88\u62a4\u8fdb\u7a0b","result":"","resultStatus":"","lock":false,"status":"published","taskId":"4826","isOptional":"0","type":"video","isTaskFree":"0","watchLimitRemaining":false,"replayStatus":"","activityStartTimeStr":"","activityStartTime":"","activityLength":"45:13","activityEndTime":"","fileStorage":"","isTaskTryLookable":0,"isSingleTaskLesson":true},{"itemType":"task","number":"13","published_number":"13","title":"\u4e0a\u4e00\u6b21\u8bfe\u7a0b\u590d\u4e60","result":"","resultStatus":"","lock":false,"status":"published","taskId":"4827","isOptional":"0","type":"video","isTaskFree":"0","watchLimitRemaining":false,"replayStatus":"","activityStartTimeStr":"","activityStartTime":"","activityLength":"47:37","activityEndTime":"","fileStorage":"","isTaskTryLookable":0,"isSingleTaskLesson":true},{"itemType":"task","number":"14","published_number":"14","title":"wait-system\u8981\u70b9\u8865\u5145","result":"","resultStatus":"","lock":false,"status":"published","taskId":"4828","isOptional":"0","type":"video","isTaskFree":"0","watchLimitRemaining":false,"replayStatus":"","activityStartTimeStr":"","activityStartTime":"","activityLength":"43:47","activityEndTime":"","fileStorage":"","isTaskTryLookable":0,"isSingleTaskLesson":true},{"itemType":"task","number":"15","published_number":"15","title":"signal\u51fd\u6570\u8be6\u7ec6\u7528\u6cd5 ","result":"","resultStatus":"","lock":false,"status":"published","taskId":"4829","isOptional":"0","type":"video","isTaskFree":"0","watchLimitRemaining":false,"replayStatus":"","activityStartTimeStr":"","activityStartTime":"","activityLength":"29:46","activityEndTime":"","fileStorage":"","isTaskTryLookable":0,"isSingleTaskLesson":true},{"itemType":"task","number":"16","published_number":"16","title":"\u4fe1\u53f7\u53d1\u9001\u53ca\u53ef\u4e2d\u65ad\u7761\u7720\u548c\u4e0d\u53ef\u4e2d\u65ad\u7761\u7720","result":"","resultStatus":"","lock":false,"status":"published","taskId":"4830","isOptional":"0","type":"video","isTaskFree":"0","watchLimitRemaining":false,"replayStatus":"","activityStartTimeStr":"","activityStartTime":"","activityLength":"35:11","activityEndTime":"","fileStorage":"","isTaskTryLookable":0,"isSingleTaskLesson":true},{"itemType":"task","number":"17","published_number":"17","title":"\u4fe1\u53f7\u5904\u7406\u51fd\u6570\u9047\u4e0a\u4e0d\u53ef\u91cd\u5165\u51fd\u6570","result":"","resultStatus":"","lock":false,"status":"published","taskId":"4831","isOptional":"0","type":"video","isTaskFree":"0","watchLimitRemaining":false,"replayStatus":"","activityStartTimeStr":"","activityStartTime":"","activityLength":"18:32","activityEndTime":"","fileStorage":"","isTaskTryLookable":0,"isSingleTaskLesson":true},{"itemType":"task","number":"18","published_number":"18","title":"\u4fe1\u53f7\u963b\u585e\u672a\u8fbepending\u539f\u7406\u673a\u5236\u8bb2\u89e3","result":"","resultStatus":"","lock":false,"status":"published","taskId":"4832","isOptional":"0","type":"video","isTaskFree":"0","watchLimitRemaining":false,"replayStatus":"","activityStartTimeStr":"","activityStartTime":"","activityLength":"28:16","activityEndTime":"","fileStorage":"","isTaskTryLookable":0,"isSingleTaskLesson":true},{"itemType":"task","number":"19","published_number":"19","title":"\u4fe1\u53f7\u672a\u8fbe\u4ee3\u7801\u8bb2\u89e3","result":"","resultStatus":"","lock":false,"status":"published","taskId":"4833","isOptional":"0","type":"video","isTaskFree":"0","watchLimitRemaining":false,"replayStatus":"","activityStartTimeStr":"","activityStartTime":"","activityLength":"14:44","activityEndTime":"","fileStorage":"","isTaskTryLookable":0,"isSingleTaskLesson":true},{"itemType":"task","number":"20","published_number":"20","title":"sigaction ","result":"","resultStatus":"","lock":false,"status":"published","taskId":"4834","isOptional":"0","type":"video","isTaskFree":"0","watchLimitRemaining":false,"replayStatus":"","activityStartTimeStr":"","activityStartTime":"","activityLength":"15:41","activityEndTime":"","fileStorage":"","isTaskTryLookable":0,"isSingleTaskLesson":true},{"itemType":"task","number":"21","published_number":"21","title":"sigqueAndsigaction","result":"","resultStatus":"","lock":false,"status":"published","taskId":"4835","isOptional":"0","type":"video","isTaskFree":"0","watchLimitRemaining":false,"replayStatus":"","activityStartTimeStr":"","activityStartTime":"","activityLength":"20:13","activityEndTime":"","fileStorage":"","isTaskTryLookable":0,"isSingleTaskLesson":true},{"itemType":"task","number":"22","published_number":"22","title":"\u4e0a\u4e00\u6b21\u8bfe\u7a0b\u590d\u4e601","result":"","resultStatus":"","lock":false,"status":"published","taskId":"4836","isOptional":"0","type":"video","isTaskFree":"0","watchLimitRemaining":false,"replayStatus":"","activityStartTimeStr":"","activityStartTime":"","activityLength":"24:41","activityEndTime":"","fileStorage":"","isTaskTryLookable":0,"isSingleTaskLesson":true},{"itemType":"task","number":"23","published_number":"23","title":"\u4e0a\u4e00\u6b21\u8bfe\u7a0b\u590d\u4e602","result":"","resultStatus":"","lock":false,"status":"published","taskId":"4837","isOptional":"0","type":"video","isTaskFree":"0","watchLimitRemaining":false,"replayStatus":"","activityStartTimeStr":"","activityStartTime":"","activityLength":"16:32","activityEndTime":"","fileStorage":"","isTaskTryLookable":0,"isSingleTaskLesson":true}]