[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fsfFR4YwwKXHpaPiQn_NOI4RkZD6ry6MO7n3B58T0fA8":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":67},[],"2024-10-15 23:05:27",161851087,[8,9,10,11],"(a < b) OR NOT (a < c)","NOT a < c","(a < b) AND (a < c)","(a < b) OR (a > c)",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},16,"18c043233181654bcd2cc473361bb119","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Faeb25db502ee8d57f11664b49dc995c0.png","空间数据处理与应用","work_37522737","","假设a<b<c,以下命令返回值为非真的选项为()",[21,33,40,49,56,64,68,74,79,84],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2024-10-15 23:00:11",161849747,[26,27,28,29],"'Sea%le' LIKE 'Seattle'","'Seattle%' LIKE 'North Seattle'","'Sea_le' LIKE 'Seattle'","'_eattle' LIKE 'Seattle WA'","以下命令返回为真的选项为( )","v1",1,{"answer":34,"createTime":23,"id":35,"options":36,"question":19,"source":31,"type":32},[],161849748,[37,9,38,39],"OR NOT (a < c)","AND (a < c)","OR (a > c)",{"answer":41,"createTime":23,"id":42,"options":43,"question":48,"source":31,"type":32},[],161849749,[44,45,46,47],"lyr = ogr.Open(fn, 0).GetLayer(0)feat = lyr.GetNextFeature()","feat = ogr.Open(fn, 0).GetLayer(0).GetNextFeature()","以上答案均正确","ds = ogr.Open(fn, 0)lyr = ds.GetLayer(0)feat = lyr.GetNextFeature()","以下命令书写错误的选项为( )",{"answer":50,"createTime":23,"id":51,"options":52,"question":48,"source":31,"type":32},[],161849750,[53,54,55,46],"lyr.SetSpatialFilter(None)","lyr.SetAttributeFilter(None)","lyr.SetSpatialFilterRect(None)",{"answer":57,"createTime":23,"id":58,"options":59,"question":48,"source":31,"type":32},[],161849751,[60,61,62,63],"lyr.GetFeature(2).GetField('name')","lyr.SetAttributeFilter('continent = "South America"')","lyr.GetFeature(2).GetField(name)","lyr.SetAttributeFilter("continent = 'South America'")",{"answer":65,"createTime":5,"id":6,"options":66,"question":19,"source":31,"type":67},[],[8,9,10,11],0,{"answer":69,"createTime":5,"id":70,"options":71,"question":72,"source":31,"type":73},[],161851088,[],"标准的比较运算符有:=、!=、__、>、<__和__",2,{"answer":75,"createTime":5,"id":76,"options":77,"question":78,"source":31,"type":73},[],161851089,[],"属性过滤条件,就是通过一个或多个__的值来限定要素,即需要一个__,类似SQL语句中的where子句,将比较结果为真的要素返回",{"answer":80,"createTime":5,"id":81,"options":82,"question":83,"source":31,"type":73},[],161851090,[],"使用SQL语句时,如果涉及到两个图层,可以通过__命令,即通过一个公共的属性值,将这两个图层的属性表连接在一起,其中,__命令表示保留记录表中位于公共属性字段左边的属性字段.__命令用于找到两个属性之间匹配的记录",{"answer":85,"createTime":5,"id":86,"options":87,"question":88,"source":31,"type":73},[],161851091,[],"ExecuteSQL函数的__参数表示SQL语句采用的是何种标准的字符串,默认使用__标准,当使用SQLite标准时,不返回__,如果需要,可以通过__命令,将其添加进来"]