循环

2015-12-27  本文已影响0人  ZLWorm

for循环

var sum = 0
for var i = 0; i < 10;i++{
    sum += i
}
print(sum)
var sum = 0
for i in 0..<10{
    sum += i
}
print(sum)
var sum = 0
for i in 0...10{
    sum += i
}
print(sum)
for _ in 0...10 {
    print("hello")
}

while循环

var i = 10
//实现循环一次减 1 ,如果i<=0 的时候就不再循环
while (i > 0){
    i--
    print(i)
}
//do - while ——> repeat - while   
repeat {
    i--
    print(i)
}while(i > 0)
上一篇 下一篇

猜你喜欢

热点阅读