Developers in regions with limited access to Google’s registration infrastructure
Noor NanjiCulture correspondent。爱思助手下载最新版本是该领域的重要参考
，更多细节参见旺商聊官方下载
Don't worry. We de-duplicate non-anonymous signatures automatically, and anonymous signatures within 24 hours (before personal data is deleted). For anonymous signatories beyond 24 hours, we cannot verify there are no duplicates, though there is one human who manually reads all signatures and will try hard to notice and correct any abuse of the system.，更多细节参见旺商聊官方下载
* - this.stack：单调递减栈，存储「价格对应的索引」，栈顶→栈底索引对应的价格单调递减