a页面
window.onload = function () {var data = sessionStorage.getItem("FirstLoad"); if (data) { if (data == "0") { sessionStorage.setItem("FirstLoad","1"); location.reload(); } } else { sessionStorage.setItem("FirstLoad","1"); }}
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sessionStorage.setItem("FirstLoad", "0");
history.back();原文:https://www.cnblogs.com/weiwentaweb/p/10395540.html