//数据字符串
let string ="<a href=\"http://app.weibo.com/t/feed/6vtz0d\" rel=\"nofollw\">weibo weibo.com</a>zzz"
/*
* 对于模糊查询: 关心的内容用括号包含起来 (.*?);不关心的内容 .*? --> 匹配任何内容
*/
//创建正则表达式 匹配方案
//let pattern = "<a href=\"http://aschina.com/t/seed/6vtz0d\" rel=\"nofollw\">weibo weibo.com</a>zzz"
//let pattern = "<a href=\"(.*?)\" rel=\"nofollw\">(.*?)</a>zzz"
let pattern = "<a href=\"(.*?)\" .*?>(.*?)</a>zzz"
//创建正则表达式
guardlet regx = try?NSRegularExpression(pattern: pattern, options: [])else {
return
}
//查找匹配
guard let result = regx.firstMatch(in: string, options: [], range:NSRange(location: 0, length: string.characters.count))else{
print("没有匹配项")
return
}
for indxin 0..<result.numberOfRanges {
let range = result.rangeAt(indx)
let subStr = (stringas NSString).substring(with: range)
print(subStr)
print("\n")
}