# 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/d4yh5tq
yue-fang-readfog-go
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深入理解 Go 語言 — 併發控制**
Go 語言以其優雅的併發模型而聞名。我們一起考慮這樣一種場景，協程 A 在執行過程中需要創建子協程 A1、A2、A3…An，協程 A 創建完子協程後就等待子協程退出，爲了處理這三種場景，Go 提供了三種解決方案，並且這三種方案各有優劣：Channel：使用 channel 控制子協程，優點是實現簡單，清晰易懂。 WaitGroup：使用信號量機制控制子協程，優點是子協程個數可以動態調整。 ⌘ Read more