打印时报emSize必须大于0时间:2023-03-09 03:06:27 Value of '0' is not valid for 'emSize','emSize' should be greater than 0 and less than or equal to System.Single.MaxValue.Parameter name:emSize. 检查字体大小是不是小于等于0了。 new System.Drawing.Font(name,size,fontStyle).