关于System.OverflowException异常

什么是OverflowException

就是溢出异常。这个一般是当在线程检查的上下文中执行的算术、强制转换或转换运算导致溢出时引发的异常。

继承

Object

Exception

SystemException

ArithmeticException

OverflowException

说明

• OverflowException。
  

  int value = 780000000;
  checked {
  try {
     // Square the original value.
     int square = value * value; 
     Console.WriteLine("{0} ^ 2 = {1}", value, square);
  }
  catch (OverflowException) {
     double square = Math.Pow(value, 2);
     Console.WriteLine("Exception: {0} > {1:E}.", 
                       square, Int32.MaxValue);
  } }
  // The example displays the following output:
  //       Exception: 6.084E+17 > 2.147484E+009.

  
  

• byte value = 241;
  checked {
  try {
     sbyte newValue = (sbyte) value;
     Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", 
                       value.GetType().Name, value, 
                       newValue.GetType().Name, newValue);
  }
  catch (OverflowException) {
     Console.WriteLine("Exception: {0} > {1}.", value, SByte.MaxValue);
  } }                            
  // The example displays the following output:
  //       Exception: 241 > 127.