C语言的for语句错误

# include <stdio.h>int main(void){ int a;int b = 0;int sum = 0;float p; //平均数用小数for (a=1; a<=5; ++a){if (a%2 != 0) { //少了大括号 sum = sum + a;b = b + 1;}} printf("sum = %d\n", sum);printf("b = %d\n", b);p = 1.0*sum/b;printf("p = %f\n", p);return 0;}

没有任何错误。