编辑代码

//创建空集合

var names=Set<String>()
names.insert("lucy")
names.insert("luc")
names.insert("lu")
names.insert("l")
 
 for name in names{
     print(name)
 }

 print("------------")
//创建时赋值
 var scores:Set<Int>=[78,89,56,98,99,89,100];
 scores.remove(56)
 for score in scores{
     print(score)
 }
//分数超过一百

if scores.contains(100){
    print("太牛了")
}
  print("------------")
var nums:Array<Int>=[78,89,56,98,99,89];
for num in nums{
    print(num)
}