# 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/w25ycbq
sync-WaitGroup 設計與實現**
概述--sync.WaitGroup 可以等待一個併發執行的 goroutine 集合執行結束。示例--通過一個小例子展示 sync.WaitGroup 的使用方法。package mainimport ( "fmt" "strconv" "sync" "time")type Task struct { ID   int Name string}func main() { tasks := mak ⌘ Read more=