摘要：package main import ( "context" "errors" "log" "net/http" "sync" "time" ) type Tracker struct { wg sync.WaitGroup } type App struct { track Tracker } 阅读全文

摘要：package main import ( "context" "errors" "fmt" "time" ) type result struct { record string err error } func search(term string) (string, error) { time 阅读全文