c语言：printf帮助

Question

here is my coding which gives me the error 'warning: unknown conversion type character 0x20 in format'

int subtotal;
long long a,b,c,d,e,f,g,h,i,j,k,l,m;
subtotal = (1*(a+c+e+g+i+k))+(3*(b+d+f+h+j+l));
printf(" = %d % 10 = %d; (10 - %d) % 10 = %lld\n", subtotal,subtotal%10,subtotal%10,m);

any idea why this is wrong?

Answer 1

忽略你有一堆未初始化变量的事实，％字符是printf格式字符串中的特殊字符 - 如果你想要文字'％'，你需要'%%'。

printf(" = %d %% 10 = %d; (10 - %d) %% 10 = %lld\n", subtotal,subtotal%10,subtotal%10,m);

Answer 2

在printf你需要一个转义字符打印% ，你需要使用的控制台%%