# I am the Watcher. I am your guide through this vast new twtiverse.
# 
# Usage:
#     https://watcher.sour.is/api/plain/users              View list of users and latest twt date.
#     https://watcher.sour.is/api/plain/twt                View all twts.
#     https://watcher.sour.is/api/plain/mentions?uri=:uri  View all mentions for uri.
#     https://watcher.sour.is/api/plain/conv/:hash         View all twts for a conversation subject.
# 
# Options:
#     uri     Filter to show a specific users twts.
#     offset  Start index for quey.
#     limit   Count of items to return (going back in time).
# 
# twt range = 1 1
# self = https://watcher.sour.is/conv/m6t4l6q
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【網絡協議】精講 TCP 數據包格式**
1.TCP 報文格式     瞭解報文格式是搞懂一個通信協議的必經之路。TCP 報文由 TCP 首部 (報頭) 和應用數據構成，其中 TCP 首部是 TCP 協議的核心所在，應用數據部分是 TCP 報文的負載，如下圖所示。以下詳細介紹各字段含義：源端口 (Source Port) 和目的端口 (Destination Port)\*：長度各爲 16 位，即 2 個字節，分別指示發送端的應用程序使用的 ⌘ Read more*