這個語速挺適合邊看視頻邊敲代碼,說得也很清晰,只看不敲的可以去APP調(diào)語速,免費(fèi)可以學(xué)到這么好的東西就知足吧
2015-11-26
數(shù)組的方法吧
var str4 = "-"
var NumberArray = ["1","2","3"]
NumberArray.joinWithSeparator(str4)
var str4 = "-"
var NumberArray = ["1","2","3"]
NumberArray.joinWithSeparator(str4)
2015-11-24
var strArr10 = ["a", "b" ,"ba","bcd","ab","abcd"]
strArr10.sort({(s1:String,s2:String)->Bool in
// if countElements(s1) != countElements(s2)
if s1.characters.count != s2.characters.count
{
return s1.characters.count < s2.characters.count
}
return s1 < s2
strArr10.sort({(s1:String,s2:String)->Bool in
// if countElements(s1) != countElements(s2)
if s1.characters.count != s2.characters.count
{
return s1.characters.count < s2.characters.count
}
return s1 < s2
2015-11-16
感覺有點(diǎn)不舒服,參數(shù)里option:XXXXX,這個寫法。。。受不鳥了
2015-11-16
當(dāng)可變參數(shù)和函數(shù)嵌套使用的時候,others:Int... 改寫成others:[Int] 就可以了
2015-11-16