if语句中的if语句

Question

对于作业，我必须证明if语句可以放在Powershell脚本中的if语句中。因此我制作了附上的剧本。但是我不确定我的脚本是否描述了两个单独的if语句，或者在if中是否被视为if。

[int]$a = Read-host "Please input a number." 
if ($a –eq 5) { 
Write-Host “a is 5” } 
if ($a –ne 5) { 
Write-Host “a isn't 5” }
Read-host

对此有何帮助？

---

感谢您的回答。为什么这不起作用？

if ($a –lt 2) { 
    if ($a –lt 3) {       
        if ($a –lt 4) { 
             if ($a –lt 5) {  
             Write-Host “a is less than 5” }
        Write-Host “a is less than 4” } 
    Write-Host “a is less than 3” }
Write-Host “a is less than 2” }

Answer 1

不，这是两个单独的if语句。嵌套将是：

if ($a –lt 5) { 
  if ($a –ne 2) { 
  Write-Host “a isn't 2” }
Write-Host “a is lt 5” }