奇怪 这样赋值不行么 只能在循环里赋值?
kzzk 2011-07-21 11:08:31 void main (void){ //主程序
key=1;
LED=1;
unsigned int a;//这里 编译提示出错Keil uVision3
a=1;
while(1){
if (key==0){
DELAY_MS (60);
if (key==0){
LED=~a;
a=~a;
}
} // key=LED;
}
}
123.C(40): error C141: syntax error near 'unsigned'
123.C(40): error C202: 'a': undefined identifier
123.C(41): error C202: 'a': undefined identifier
123.C(50): error C202: 'a': undefined identifier
123.C(51): error C202: 'a': undefined identifier