Swift开发教程--字符串的操作

替换

var url = "http://blog.csdn.net/hello_hwc?viewmode=list"
var filtered = url.stringByReplacingOccurrencesOfString("?", withString: "/", options: NSStringCompareOptions.LiteralSearch, range: nil)

"http://blog.csdn.net/hello_hwc/viewmode=list"

过滤

var url = "http://blog.csdn.net/hello_hwc?viewmode=list"var filtered = url.stringByReplacingOccurrencesOfString("/", withString: "", options: NSStringCompareOptions.LiteralSearch, range: nil)

"http:blog.csdn.nethello_hwc?viewmode=list"

var url = "   http://blog.csdn.net/hello_hwc?viewmode=list   "var newString = url.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceCharacterSet())

"http://blog.csdn.net/hello_hwc?viewmode=list"

切割

var url = "http://blog.csdn.net/hello_hwc?viewmode=list"let splitedarray = split(url){$0 == "/"}

"http:""blog.csdn.net""hello_hwc?viewmode=list"

拼接

let splitedarray = ["1","2","3"]let result = join("/", splitedarray)

"1/2/3"