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摘要：https://blog.csdn.net/itcast_cn/article/details/82887895 https://blog.csdn.net/w13707470416/article/details/88814223（上面图中答案） 阅读全文

摘要：video 标签上添加 muted https://blog.csdn.net/taiyangmiaomiao/article/details/80266625 阅读全文

摘要：function Fn(str){ this.str = str; } Fn.prototype.format = function(){ var arg = arguments; var dd = this.str.replace(/{[0-9]}/g,function(a,b){ var _index = a.replace(/\{|}/g,''); cons... 阅读全文