Detailed explanation of the usage of for loop and switch in thinkphp

<for start="开始值" end="结束值" comparison="" step="步进值" name="循环变量名" >
</for>

<for start="1" end="100">
{$i}
</for>

for ($i=1;$i<100;$i+=1){
    echo $i;
}

<switch name="变量" >
<case value="值1" break="0或1">输出内容1</case>
<case value="值2">输出内容2</case>
<default />默认情况
</switch>

<switch name="User.level">
    <case value="1">value1</case>
    <case value="2">value2</case>
    <default />default
</switch>

<switch name="User.userId">
    <case value="$adminId">admin</case>
    <case value="$memberId">member</case>
    <default />default
</switch>

<for start="0" end="$credit[&#39;num&#39;]">
    <switch name="credit[&#39;level&#39;]">
        <case value="1"><img src="{sh::PUB}img/credit/level-heart2.png" class="star"></case>
        <case value="2"><img src="{sh::PUB}img/credit/level-diamond2.png" class="star"></case>
        <case value="3"><img src="{sh::PUB}img/credit/level-crown2.png" class="star"></case>
        <case value="4"><img src="{sh::PUB}img/credit/level-super-crown2.png" class="star"></case>
        <default />default
    </switch>
</for>