round(v, decimal, type) {//四舍五入
	        if (!v)
	            return 0;
	        var d = Math.pow(10, (decimal || 0));
	        if (!type)
	            return Math.round(Number((v * d).toFixed(1))) / d;
	        else if (type < 0)
	            return Math.floor(v * d) / d;
	        else
	            return Math.ceil(v * d) / d;
	    }