powershell - 如果语句不起作用则嵌套

Question

我正在尝试编写用于查找a年的代码。但是，嵌套的if和else格式似乎有问题。请提出建议。

[int]$x = Read-Host -Prompt 'Input a year : ';

if ($x % 4 -eq 0) {
    Write-Host $x 'is a leap year';
    if ($x % 100 -eq 0) {
        Write-Host $x 'is a leap year';
        if ($x % 400 -eq 0) {
            Write-Host $x 'is a leap year';

        else {
            Write-Host $x 'is not a leap year';
        }
    }
    else {
        Write-Host $x 'is not a leap year';
    }
}
else {
    Write-Host $x 'is not a leap year';
}

Answer 1

我想这就是你想要的:

[int]$x = Read-Host -Prompt 'Input a year : ';

If ($x % 4 -eq 0) {
    if ($x % 400 -eq 0){
        Write-Host $x 'is a leap year';
    }
    Elseif ($x % 100 -eq 0){
        Write-Host $x 'is not a leap year';
    }
    Else{
        Write-Host $x 'is a leap year';
    }
}
Else {
    Write-Host $x 'is not a leap year';
}