Razor VB 循环学习笔记

1. For 循环

使用 for 循环可以重复执行指定次数的代码块。

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@For i = 0 To 5
    <p>The value of i is @i</p>
Next

输出：

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<p>The value of i is 0</p>
<p>The value of i is 1</p>
<p>The value of i is 2</p>
<p>The value of i is 3</p>
<p>The value of i is 4</p>
<p>The value of i is 5</p>

2. While 循环

使用 while 循环可以在条件为真时重复执行代码块。

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@{
    Dim i As Integer = 0
}
@While i < 5
    <p>The value of i is @i</p>
    @{
        i += 1
    }
End While

输出：

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<p>The value of i is 0</p>
<p>The value of i is 1</p>
<p>The value of i is 2</p>
<p>The value of i is 3</p>
<p>The value of i is 4</p>

3. Do-While 循环

使用 do-while 循环可以在执行代码块之前先检查条件是否为真，如果条件为真，则重复执行代码块。

vbCopy Code
@{
    Dim i As Integer = 0
}
@Do While i < 5
    <p>The value of i is @i</p>
    @{
        i += 1
    }
Loop

输出：

htmlCopy Code
<p>The value of i is 0</p>
<p>The value of i is 1</p>
<p>The value of i is 2</p>
<p>The value of i is 3</p>
<p>The value of i is 4</p>

4. For-Each 循环

使用 for-each 循环可以枚举数组或集合中的元素。

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@Code
    Dim fruits() As String = {"Apple", "Banana", "Orange"}
End Code
@foreach fruit In fruits
    <p>The fruit is @fruit</p>
Next

输出：

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<p>The fruit is Apple</p>
<p>The fruit is Banana</p>
<p>The fruit is Orange</p>

以上就是 Razor VB 循环学习笔记的全部内容。