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# js方法 ``` <pre class="calibre18">``` util<span class="token2">.</span><span class="token1">message</span><span class="token2">(</span><span class="token4">'请选择新闻分类'</span><span class="token2">,</span> <span class="token4">''</span><span class="token2">,</span> <span class="token4">'success'</span><span class="token2">)</span><span class="token2">;</span>error错误 留空i红色模态框 ``` ```