用户故事对象上的 TestCases 字段是测试用例的集合,您需要遍历该集合以获取 FormattedID 和集合中各个元素的其他字段。这是代码:
 var rallyDataSource = null;
 var iterDropdown = null;
 var table = null;
 function showUserStoriesTable(results) {
  for (var i=0; i < results.stories.length; i++) {
        var t = " ";
    if (results.stories[i].TestCases){
            console.log(results.stories[i].TestCases.length);
            for(var j = 0; j < results.stories[i].TestCases.length; j++){
                t += "  ";
                t += results.stories[i].TestCases[j].FormattedID;
            }
            results.stories[i].TestCases=t;
    }
   }
   var tableConfig = {
     columnKeys : ['FormattedID', 'Name', 'TestCases' ],
     columnWidths : ['80px', '360px', '400px']
   };
   table = new rally.sdk.ui.Table(tableConfig);
   table.addRows(results.stories);
   table.display(document.getElementById('stories'));
 }
function onIterationSelected() {
   if(table) {
    table.destroy();
   }
   var queryConfig = {
     type : 'hierarchicalrequirement',
     key : 'stories',
    fetch: 'FormattedID,Name,TestCases',
     query: '(Iteration.Name = "' + iterDropdown.getSelectedName() + '")',
     order: 'Rank'
  };
   rallyDataSource.findAll(queryConfig, showUserStoriesTable);
 }
 function onLoad() {
   // rallyDataSource = new rally.sdk.data.RallyDataSource('__WORKSPACE_OID__','__PROJECT_OID__','__PROJECT_SCOPING_UP__','__PROJECT_SCOPING_DOWN__');
rallyDataSource = new rally.sdk.data.RallyDataSource('111111','222222','false','false');  //IF RUNNING OUSIDE OF RALLY USE OIDs
  var iterConfig = {};
   iterDropdown = new rally.sdk.ui.IterationDropdown(iterConfig, rallyDataSource);
   iterDropdown.display(document.getElementById("iterationDiv"), onIterationSelected);
 }
 rally.addOnLoad(onLoad);