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  • js中字节B转化成KB,MB,GB

    function change(limit){
        var size = "";
        if(limit < 0.1 * 1024){                            //小于0.1KB,则转化成B
            size = limit.toFixed(2) + "B"
        }else if(limit < 0.1 * 1024 * 1024){            //小于0.1MB,则转化成KB
            size = (limit/1024).toFixed(2) + "KB"
        }else if(limit < 0.1 * 1024 * 1024 * 1024){        //小于0.1GB,则转化成MB
            size = (limit/(1024 * 1024)).toFixed(2) + "MB"
        }else{                                            //其他转化成GB
            size = (limit/(1024 * 1024 * 1024)).toFixed(2) + "GB"
        }
    
        var sizeStr = size + "";                        //转成字符串
        var index = sizeStr.indexOf(".");                    //获取小数点处的索引
        var dou = sizeStr.substr(index + 1 ,2)            //获取小数点后两位的值
        if(dou == "00"){                                //判断后两位是否为00,如果是则删除00                
            return sizeStr.substring(0, index) + sizeStr.substr(index + 3, 2)
        }
        return size;
    }
    
    var newLimit = change(1048576);
    console.log(newLimit);
    

      

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  • 原文地址:https://www.cnblogs.com/zmdComeOn/p/12744455.html
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