我想根据我的核心数据中的数据显示一个图表。怎么能做到这一点呢?
var myArray: Array <Float> = [0]
let appDel:AppDelegate = UIApplication.sharedApplication().delegate as AppDelegate
let context:NSManagedObjectContext = appDel.managedObjectContext!
let request = NSFetchRequest(entityName: "StudentCGPA")
request.returnsObjectsAsFaults = false;
var results:NSArray = context.executeFetchRequest(request, error: nil)!
if results.count > 0 {
for student in results{
var thisstudent = student as StudentCGPA
'the fetched data should output to myArray
}
}else {
}
最佳答案
如果您想用 float 填充新数组,只需执行以下操作:
myArray.append(thisstudent.yourFloatEntity)
关于swift - 如何将核心数据输出到数组中以生成图形(Swift),我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/29711136/