Google搜索技巧几种：
❶ 双引号：搜索精确字串匹配。示例："精确字串匹配"
❷ 减号：去除带有某些匹配的搜索结果。示例：海豚 -海豚湾
❸ 波浪号：模糊搜索。示例：音乐 ~网课
❹ site关键词：搜索特定网站内的结果。示例：音乐 site:tumblr.com
❺ 竖号：搜索匹配A或匹配B的结果。示例：海豚 | 海豹
❻ 两个点：搜索数字范围的匹配。示例：电影 1980..2000
❼ filetype关键词：搜索特定文件类型。示例：拜登 filetype:pdf source
BY 程序员之家
Secret Chats are one of the service’s additional security features; it allows messages to be sent with client-to-client encryption. This setup means that, unlike regular messages, these secret messages can only be accessed from the device’s that initiated and accepted the chat. Additionally, Telegram notes that secret chats leave no trace on the company’s services and offer a self-destruct timer.
Some messages aren’t supposed to last forever. There are some Telegram groups and conversations where it’s best if messages are automatically deleted in a day or a week. Here’s how to auto-delete messages in any Telegram chat. You can enable the auto-delete feature on a per-chat basis. It works for both one-on-one conversations and group chats. Previously, you needed to use the Secret Chat feature to automatically delete messages after a set time. At the time of writing, you can choose to automatically delete messages after a day or a week. Telegram starts the timer once they are sent, not after they are read. This won’t affect the messages that were sent before enabling the feature.
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