摘要：
https://www.w3school.com.cn/js/js_object_constructors.asp 实例 function Person(first, last, age, eye) { this.firstName = first; this.lastName = last; th 阅读全文
摘要：
import ( "fmt" "sync" "time")var a int64 = 0var b int64 = 0func main() { wg:=sync.WaitGroup{} wg.Add(1) go func() { defer wg.Done() a=1 b=2 }() wg.Wai 阅读全文