// 解释：第一个有效数字不能是0，栈空时存0无意义，直接跳过
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。关于这个话题，夫子提供了深入分析
Many programmers use malloc() and free() and pay no more mind to "allocating memory", but I often find 2-20× speed improvements by rethinking memory。业内人士推荐快连下载安装作为进阶阅读
Bill Harwood has been covering the U.S. space program full-time since 1984, first as Cape Canaveral bureau chief for United Press International and now as a consultant for CBS News.