摘要: 1. for 循环 arr/str let cars = ["BMW", "Volvo", "Saab", "Ford"]; for (var i = 0; i < cars.length; i++) { console.log(cars[i]); } 例: for (;cars[i];) { do 阅读全文
posted @ 2022-04-13 11:39 jqynr 阅读(138) 评论(0) 推荐(0)