package main

import (
	"fmt"
	"unsafe"
)

func main() {
	type A struct{}
	type B struct{}
    // 结构体里的字段都是`Empty Struct`时，占用空间为0
	type S struct {
		A A
		B B
	}
	var s S
	fmt.Println(unsafe.Sizeof(s)) // prints 0
    // 如果是指针，占用空间为8
	fmt.Println(unsafe.Sizeof(&s)) // prints 8

	var x [1000000000]struct{}
    // 可以同时存储A和B类型元素
	x[0] = A{}
	x[1] = B{}
	fmt.Println(unsafe.Sizeof(x)) // prints 0
    // 地址一样
	fmt.Printf("%p, %p", &x[0], &x[1]) // 0x54e3a0, 0x54e3a0
}

@echo off
for %%i in (service-name) do (
    echo the service '%%i' is being starting...
    sc query %%i
    net stop %%i
    net start %%i
    sc query %%i
    echo service '%%i' started.
)
pause

$Username = 'Name'
$Password = 'Password'
$pass = ConvertTo-SecureString -AsPlainText $Password -Force
$Cred = New-Object System.Management.Automation.PSCredential -ArgumentList $Username,$pass
Invoke-Command -ComputerName [Remote-IP] -ScriptBlock { Get-Service WinRM } -credential $Cred
Invoke-Command -ComputerName [Remote-IP] -credential $Cred -ScriptBlock { E:\win-dms4\restart.bat } # 此处指定上述bat文件在远程机器上的决对路径
Read-Host -Prompt "Press Enter to exit"

...
ts=2023-07-06T01:34:43.871Z caller=repair.go:57 level=info component=tsdb msg="Found healthy block" mint=1688493607159 maxt=1688515200000 ulid=01H4J6TB6NCBZFNR9XZ1R2P67H
ts=2023-07-06T01:34:43.871Z caller=repair.go:57 level=info component=tsdb msg="Found healthy block" mint=1688529607159 maxt=1688536800000 ulid=01H4JDM4YR6J3TJVBY6P6EGZS4
ts=2023-07-06T01:34:43.872Z caller=repair.go:57 level=info component=tsdb msg="Found healthy block" mint=1688536807159 maxt=1688544000000 ulid=01H4JMFGKWY1MAM7GBFDQ89FRV
ts=2023-07-06T01:34:43.872Z caller=main.go:696 level=info msg="Stopping scrape discovery manager..."
ts=2023-07-06T01:34:43.872Z caller=main.go:710 level=info msg="Stopping notify discovery manager..."
ts=2023-07-06T01:34:43.872Z caller=main.go:732 level=info msg="Stopping scrape manager..."
ts=2023-07-06T01:34:43.872Z caller=manager.go:946 level=info component="rule manager" msg="Stopping rule manager..."
ts=2023-07-06T01:34:43.872Z caller=manager.go:956 level=info component="rule manager" msg="Rule manager stopped"
ts=2023-07-06T01:34:43.872Z caller=notifier.go:601 level=info component=notifier msg="Stopping notification manager..."
ts=2023-07-06T01:34:43.872Z caller=main.go:726 level=info msg="Scrape manager stopped"
ts=2023-07-06T01:34:43.872Z caller=main.go:692 level=info msg="Scrape discovery manager stopped"
ts=2023-07-06T01:34:43.872Z caller=main.go:907 level=info msg="Notifier manager stopped"
ts=2023-07-06T01:34:43.872Z caller=main.go:706 level=info msg="Notify discovery manager stopped"
ts=2023-07-06T01:34:43.872Z caller=tls_config.go:195 level=info component=web msg="TLS is disabled." http2=false
ts=2023-07-06T01:34:43.872Z caller=main.go:916 level=error err="opening storage failed: get segment range: segments are not sequential"

rm -rf /var/lib/prometheus/metrics2/

$ pip install scikit-learn
$ python3.10
>>> from sklearn.datasets import load_iris
>>> from sklearn.linear_model import LogisticRegression
>>> data, y = load_iris(return_X_y=True)
>>> clf = LogisticRegression(random_state=0, max_iter=1000).fit(data, y)
>>> clf.predict(data[:2, :])
>>> clf.predict_proba(data[:2, :])
>>> clf.score(data, y)

route add 192.168.0.0 mask 255.255.0.0 192.168.66.254 -p

# 设置192.168.4.0网段的网关为192.168.166.1,数据走wlan0接口
# /24 is the network prefix. The network prefix is the number of enabled bits in the subnet mask.
# 24位子网掩码
ip route add 192.168.4.0/24 via 192.168.166.1 dev wlan0

# 255.255.255.0为子网掩码
# 3*8(255即是8位二进制)
ip route add 192.168.0.0/255.255.255.0 dev eth0

> wsl.exe -v
WSL version: 1.2.5.0
Kernel version: 5.15.90.1
WSLg version: 1.0.51
MSRDC version: 1.2.3770
Direct3D version: 1.608.2-61064218
DXCore version: 10.0.25131.1002-220531-1700.rs-onecore-base2-hyp
Windows version: 10.0.19045.3031