<meta http-equiv="Cache-Control" content="max-age=0"/>
<meta http-equiv="Cache-Control" content="no-cache"/>
<META HTTP-EQUIV="Expires" CONTENT="0"/>
使网页不缓存的代码
<meta http-equiv="Cache-Control" content="max-age=0"/>
<meta http-equiv="Cache-Control" content="no-cache"/>
<META HTTP-EQUIV="Expires" CONTENT="0"/>
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