求一java正则表达式

Answer 1

var url = "http://www.xxx.com/1/2";
var reg = /^(http:\/\/){1}(\w+)(\.){1}(\w+)(\.){1}(\w+)(\/\w)*$/g;
var newUrl = "";

if(reg.test(url)){
  newUrl = "<a href='" + url + "'>";
}

console.log(newUrl);

//result: '<a href=\'http://www.xxx.com/1/2\'>'