裡面有好多的全形空格

應該是輸入的時候出的問題

給你去掉了

為了減少干擾

註釋也都被我刪了

你再自己加一下

#include<c8051f310.h>

#defineuintunsignedint

sbitysclk(void)

{

OSCICL=0x2d;

OSCICN=0xc2;

CLKSEL=0x00;

}

voidpio(void)

{

P0MDIN=0xff;

P0MDOUT=0x02;

P0SKIP=0x01;

XBR0=0x00;

XBR1=0xc1;

}

voiddelay(uintm)

{

uinti;

uintj;

for(i=0;i<m;i++)

{

for(j=0;j<2000;j++)

{;;}

}

}

voidpwm(void)

{

PCA0MD&=~0x40;

PCA0CN=0x40;

PCA0MD=0x02;

PCA0CPM0=0x42;

PCA0CPL0=0;

PCA0CPH0=255;

}

main()

{

PCA0MD&=~0x40;

pio();

sysclk();

pwm();

while(1)

{

fx1=1;

PCA0CPH0=255;

delay(800);

PCA0CPH0=200;

delay(800);

PCA0CPH0=100;

delay(800);

PCA0CPH0=255;

delay(800);

fx1=0;

PCA0CPH0=200;

delay(800);

PCA0CPH0=100;

delay(800);

PCA0CPH0=255;

delay(800);

}

}