var oo = document.createElement('div');
var ii = document.createElement('div');
ii.style.height = '1px';
oo.appendChild(ii);
oo.style.visibility = 'hidden';
document.body.appendChild(oo);
var wL = ii.clientWidth;
var scrollbarWidth;
oo.style.overflowY = 'scroll';
scrollbarWidth = wL - ii.clientWidth;
console.log('scrollbar width: ' + scrollbarWidth);
获取滚动条默认的宽度
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转载自www.cnblogs.com/ybixian/p/9451283.html
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