//for－in

/*

for 迭代变量 in集合变量

{

使用迭代变量便利所有数据

}

*/

//遍历数组

var arr = ["a","b","c","d"]

for tempin arr

{

print(temp)

print("\t")

}

//

var array:[(String,Int,String)] = [("张三",20,"男"),("王三",30,("张浩",50,"女")]

for vin arr

{

if v.0 =="王三" {

print(v)

break

}

}