一.遍历json change_url: function(key, value){ condition[key] = value; var string_url = "?"; for( var s in condition ){ string_url += s +"="+ condition[s] + "&"; } var url = string_url.substring(0,string_url.length-1); return
/** * Created by xfyou on 2016/11/4. */ public class SubstringDemo { public static void main(String[] args) { String a = "Java is great."; System.out.println(a); System.out.println(a.substring(5)); System.out.println(a.substring(5, 7)); // Java的