let pattern = "(1\\d{10})"
let batteryLevel = "赛风赛风18721710825扽峰等粉丝"
func regexGetSub(pattern:String, str:String) -> String {
var subStr = ""
let regex = try! NSRegularExpression(pattern: pattern, options:[])
let matches = regex.matches(in: str, options: NSRegularExpression.MatchingOptions(rawValue: 0), range: NSMakeRange(0, str.count))
// print(matches.count)
//解析出子串
if let match = matches.first {
subStr = String(str[Range(match.range(at: 1), in: str)!])
}
return subStr
}
var batteryParams = regexGetSub(pattern: pattern, str: batteryLevel)
print(regexGetSub(pattern: pattern, str: batteryLevel))
print结果：
18721710825
我这里的正则比较简单，只识别了1开头并且长度是11位数字。
