我有一个这样的对象数组
var englang = {
"l1": "Home",
"l2": "Features",
"l3": "About Us",
"l4": "After-sales services",
"l5": "Contact Us",
"l6": "What is ",
"l7": "It is",
"l8": "Contact us now",
}
如何（1）我通过循环检索它的所有值，以及（2）如何根据它的键获取特定值，如下所示： 输出：（1）
"l1" = "Home",
"l2" = "Features",
"l3" = "About Us",
"l4" = "After-sales services",
"l5" = "Contact Us",
"l6" = "What is ",
"l7" = "It is",
"l8" = "Contact us now"
输出（2）：
"l9 = "our features"