首先main之前会执行init。如果init中又依赖其他扩展，则先执行其他扩展中的init。类似于树的叶子节点，先执行的从叶子节点开始。这是今天遇到的一个问题，还有一个就是关于windows配置环境变量。需要注意两点，首先就是环境变量设置之后，需要关闭当前命令行才能生效。另外就是环境变量分为用户变量和系统变量，如果其中设置不生效，可以选择都设置。还有就是设置环境变量以后，是以命令行形式运行的。
package main
import (
"fmt"
"runtime"
"sync/atomic"
"time"
)
type SpinLock struct {
State uint32
}
func (s *SpinLock) Lock()
student_id,course_id,scoreselect * from s.student_id,s.course_id,s.score from score s left jon (select course_id,max(score) as max_score from score group by score) m on s.course_id=m.course_id and s.s
通知接收方没有更多数据了
ch := make(chan int)
go func() {
for i := 0; i < 5; i++ {
ch <- i
}
close(ch) // 生产者发完了，通知接收者
}()
for v := range ch {
fmt.Println(v) // 接收者循环读取直
binlog 和redo log 区别binlog =>记录insert、update、delete的操作（逻辑日志 ）分三种格式：statement、row(记录数据变更情况)、mixed追加写的模式，主要用在数据恢复和主从复制redo log =>记录的是数据页上的物理修改（如"在数据页 P 的偏移量 100 写入 1"）（物理写）循环写，写满后覆盖之前的数据。主要用在事务持久性，
a给b发fin,a进入fin_wait_1。b收到fin之后，内核发送ack（a收到后进入fin_wait_2）,之后b状态就变成了close_wait之后b给a发送fin,这时候b进入last_acka收到b发送的fin之后,发送ack,此时a变成time_waitb收到ack后状态变成closedclose_wait的作用是对方已经不能给我发送数据,因为它已经fin了。我仍然可以给对方发送数据
今天在配置fastadmin env的过程中，突然发现env不生效。然后在database.php将值写死，这时候报警告错误。Warning: syntax error, unexpected end of file, expecting TC_DOLLAR_CURLY or TC_QUOTED_STRING or '"' in /Users/bot/PhpstormProjects/fastad
You can download NetEase Youdao (Chinese version), but the overseas version has many ads and missing features. The easiest way is to use the photo translation function directly.It’s important to know
Chengdu Tianfu International Airport SIM Card TipIf you’re landing at Chengdu Tianfu International Airport (T1, International Arrivals), there’s a service desk right by the exit where you can easily p
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Go to the website below and follow the stepshttps://english.shanghai.gov.cn/en-LifeGuideCommunication/20250513/9a0eccd83c65409d811185848da2c253.html
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