# 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/2jokaoq
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Go WaitGroup 詳解**
WaitGroup 概述WaitGroup在 go 語言中，用於線程同步，單從字面意思理解，wait等待的意思，group組、團隊的意思，WaitGroup就是指等待一組，等待一個系列執行完成後纔會繼續向下執行。WatiGroup是sync包中的一個struct類型，用來收集需要等待執行完成的goroutine。下面是它的定義：// WaitGroup用於等待一組線程的結束。 父線程調用Add方法 ⌘ Read more