Swift 正则替换

 static func regexPattern(pattern:String,str:String) -> String {
        
        var finalStr = str
        
        do {
          
            // - 1、创建规则
            let pattern = pattern
            // - 2、创建正则表达式对象
            let regex = try NSRegularExpression(pattern: pattern, options: NSRegularExpression.Options.caseInsensitive)
            
            // - 3、正则替换
            finalStr = regex.stringByReplacingMatches(in: str, options: NSRegularExpression.MatchingOptions(rawValue: 0), range: NSMakeRange(0, str.characters.count), withTemplate: "")
            
//            获取满足条件的集合
//            let res = regex.matches(in: str, options: NSRegularExpression.MatchingOptions(rawValue: 0), range: NSMakeRange(0, content.characters.count))
            
            
        }
        catch {
            print(error)
        }
        
        return finalStr
     
    }