ken attr-name">placeholder</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>带后置内容的输入框<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>
  <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>template</span> <span class="token attr-name">#append</span><span class="token punctuation">&gt;</span></span>.com<span class="t