var cats = [‘Bill‘, ‘Jeff‘, ‘Pete‘, ‘Biggles‘, ‘Jasmin‘];var info = ‘My cats are called ‘;for (var i = 0; i < cats.length; i++) { ?if (i === cats.length - 1) { ???info += ‘and ‘ + cats[i] + ‘.‘; ?} else { ???info += cats[i] + ‘, ‘; ?}}console.log(info)JS for循环实现 ?My cats are called Bill, Jeff, Pete, Biggles, and Jasmin.
原文地址：http://www.cnblogs.com/xzma/p/7655400.html