while (stack.length && stack[stack.length - 1] cur) {
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，这一点在旺商聊官方下载中也有详细论述
// Async — when source or transforms may be asynchronous，这一点在WPS下载最新地址中也有详细论述
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（二）殴打、伤害残疾人、孕妇、不满十四周岁的人或者七十周岁以上的人的；