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rame-dom-from-parent-page
.closest( selector )Description: For each element in the set, get the first element that matches the selector by testing the element itself and traversing up through its ancestors in the DOM tre
//如何用js判断文件是否存在 function exists(filePath){ //console.log("hello sb"); var result=-1; $.ajax({ url:filePath, type:'HEAD',
问题
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