第一是，浏览器本身中文编码不同，在设置选项中设置
第二是，开发编辑器默认的文本格式有问题
楼主是用什么编写PHP?如果sub可先新建，然后输入xhtml按tab键补齐，这个时候直接写PHP代码不会出现中文乱码问题了
河南新华网络运营协会
没有在编码里面选择自动检测准备材料：电脑、html文件、浏览器
1、首先打开html文件，有时候就会出现乱码。
/iknow-pic.cdn.bcebos.com/43a7d933c895d143d454b23c7cf082025aaf078a"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/43a7d933c895d143d454b23c7cf082025aaf078a?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/43a7d933c895d143d454b23c7cf082025aaf078a"/>
2、将鼠标移到页面空白处，右键单击，然后选择编码。
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3、在编码里面单机选择自动检测。
/iknow-pic.cdn.bcebos.com/03087bf40ad162d9418034031edfa9ec8a13cd47"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/03087bf40ad162d9418034031edfa9ec8a13cd47?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/03087bf40ad162d9418034031edfa9ec8a13cd47"/>
4、转换代码后，就会看到字体已恢复正常。
/iknow-pic.cdn.bcebos.com/0b7b02087bf40ad1d12b90fc582c11dfa8eccee6"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/0b7b02087bf40ad1d12b90fc582c11dfa8eccee6?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/0b7b02087bf40ad1d12b90fc582c11dfa8eccee6"/>
