外部中断的老报错问题SKIPPING

老是报错，不知道是哪个地方语法错误，请大虾指点一二，多谢!


1、不报错的：#pragma interrupt_handler int2_isr:iv_INT2
int2_isr();// external interrupt on INT2;

2、加了‘VOID“后报错：
!E E:\practice\satisfy\display.c(75): illegal statement termination
!E E:\practice\satisfy\display.c(75): skipping `void'

#pragma interrupt_handler int2_isr:iv_INT2
void int2_isr();// external interrupt on INT2;

3、加函数体报错：
E:\practice\satisfy\display.c(76): syntax error; found `{' expecting `;'
#pragma interrupt_handler int2_isr:iv_INT2
int2_isr()// external interrupt on INT2;
  {
  }