keil说switch.c(6): error C141: syntax error near 'void'谁能看看什么问题啊啊啊啊啊啊啊 - 编程论坛

#include<reg51.h>
#include<intrins.h>
#define uchar unsigned char
#define uint  unsigned int
uchar code seg[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90} //¹²ÑôLEDÊýÂë¹Ü¶ÎÂë±í
void delay (uint t)      //ÑÓÊ±º¯Êý
{
    uchar j;
while(t -- )
for(j=0;j<200;j++);
}
void main()   //Ö÷º¯Êý
{
    do
{
char state;
p1=0xff;//p1ÎªÊäÈë¿Ú
state=p1;//¶Áp1µÄ×´Ì¬ËÍÈëstate
state=state&0x03;//ÆÁ±ÎP1¿Ú¸ß6Î»µÄ×´Ì¬
switch(state)//ÅÐ¶Ïp1¿ÚµÍÁ½Î»µÄ×´Ì¬
{
    case 0:keep();break;
    case 1:plus();break;
    case 2:minus();break;
    case 3:keep();break;
}
}
while(1);
}
void plus(void)//ÕýÏòÑ»·º¯Êý
{
    uchar i;
    while(1)
{
    for(i=0;i<9;i++)
    {
    P0=seg[i];
    delay(900);
    }
}
}
void minus(void)//·´ÏòÑ»·º¯Êý
{
    uchar i;
    while(1)
{
    for(i=9;i>0;i--)
    {
    P3=seg[i];
    delay(900);
    }
}