Winform自定义控件添加复杂属性（struct,class等）
https://www.2cto.com/kf/201302/188246.html
https://blog.csdn.net/bychentufeiyang/article/details/7081402
SRE实战 互联网时代守护先锋，助力企业售后服务体系运筹帷幄！一键直达领取阿里云限量特价优惠。
[DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
更多精彩
