- 去除string 首尾的空格
var str = " Hello the world "
let whitespace = NSCharacterSet.whitespaceAndNewlineCharacterSet()
str = str.stringByTrimmingCharactersInSet(whitespace)
如下图效果:
2.去除String指定字符
var url = "https://i.cnblogs.com?EditPosts.aspx?postid=5923564&update=1"
var filtered = url.stringByReplacingOccurrencesOfString("?", withString: "/", options: NSStringCompareOptions.LiteralSearch, range: nil)
陆续添加中。。。