String.split():
1 ",".split(","); // 结果: [] 2 "".split(","); // 结果: [""] 3 " ".split(","); // 结果: [" "] 4 ", ".split(","); // 结果: [""," "] 5 " ,".split(","); // 结果: [" "] 6 ",,".split(","); // 结果: []
Java基础中容易出错的内容笔记
原文：http://www.cnblogs.com/crazyzfp/p/7102430.html
