swift 报错 Call can throw, but it is not marked with 'try' and the error is not handled

概述在开发中使用正则表达式时报了这样的问题：Call can throw, but it is not marked with ‘try‘ and the error is not handled，即： let regex:NSRegularExpression = NSRegularExpression(pattern: "^1[3|4|5|7|8][0-9]{9}$", options: .cas

在开发中使用正则表达式时报了这样的问题：Call can throw,but it is not marked with ‘try‘ and the error is not handled，即：

let regex:NSRegularExpression = NSRegularExpression(pattern: "^1[3|4|5|7|8][0-9]{9}$",options: .caseInsensitive)

先看下在OC中的使用

　 NSError *error = NulL;

    NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"^1[3|4|5|7|8][0-9]{9}$" options:NSRegularExpressionCaseInsensitive error:&error];

    NSTextCheckingResult *result = [regex firstMatchInString:self options:0 range:NSMakeRange(0,[self length])];

　 if (result) {

        return YES;

    }

    return NO;

对比一下发现原因是没有添加错误处理，可以通过添加try解决。

最终解决后代码：

　　do{

            let regex:NSRegularExpression = try NSRegularExpression(pattern: "^1[3|4|5|7|8][0-9]{9}$",options: .caseInsensitive)

            let result:NSTextCheckingResult = regex.firstMatch(in: self,options:.reportProgress,range: NSMakeRange(0,self.count))!

            if result != nil {

                return true

            }

        }catch { }

        

        return false

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