问题遇到的现象和发生背景
System.NullReferenceException
HResult=0x80004003
Message=未将对象引用设置到对象的实例。
Source=WindowsFormsApp3
StackTrace:
at WindowsFormsApp3.Form1.Form1_Resize(Object sender, EventArgs e) in C:\Users\shenyan\Desktop\新建文件夹 (2)\新建文件夹 (2)\WindowsFormsApp3\WindowsFormsApp3\Form1.cs:line 42
运行结果及报错内容
看调用堆栈