let docHead = document.getElementsByTagName('head')[0];
let newLink = document.getElementsByTagName('link');
newLink[0].outerHTML = "<link rel='shortcut icon' href='/assets/images/" + icoImg + "'>"
js中动态展示icon图片
let docHead = document.getElementsByTagName('head')[0];
let newLink = document.getElementsByTagName('link');
newLink[0].outerHTML = "<link rel='shortcut icon' href='/assets/images/" + icoImg + "'>"
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