invalid operands to binary +在pro*编译时出现这个错误,是什么原因?

error:invalid operands to binary % (have 'float' and 'double') invalid operands to binary +在pro*编译时出现这个错误,是什么原因? error invalid operands to binary have double and int#include #include #define BallVol(r) (4/3)*(3.14159926)*(r)^3int main(){float a,b;printf(Please input the r:);scanf(%f,&a);for(a=1;a C语言不能对表达式求模吗?while(digit!=0) { a[digit]=(number%(pow(10,digit)))/pow(10,digit-1); digit--; }这是求输入的number求每一位的个式子.害怕优先级出错所以把能加的括号都加了.提示invalid operands to binary c报错 invalid operands of types 'double' and 'double()(double)' to binary 'operator/'是怎么回事啊double mutual(double a,double b,double f){double y;y=(-(b*a+f*(1-a))*log(b*a+f*(1-a))-((1-b)*a+(1-f)*(1-a))*log((1-b)*a+(1-f)*(1-a))-a*(-b*log(b) Invalid “[email protected] SMTP error,RCPT TO:550 Invalid 汇编编程（找水仙花数）:invalid instruction operands是什么错误DATAS SEGMENT;此处输入数据段代码IN1 DB 13,10,'The number is :',13,10,'$'N DW 100A1 DB 0;百位数字除后余数A2 DB 0;十位数字除后余数B1 DW 0;百位立方 Invalid phone invalid product Invalid email invalid account. Invalid license, Invalid SRC. Invalid ID *Including invalid character. 玩天龙出现错误Expr:Failed to create Direct3D9 Device:Invalid callC++ ExceptionExpr:Failed to create Direct3D9 Device:Invalid call哈哈 6楼就是我说的 Didn't get a valid email address.Credit card number appears to be invalid failed to read file or invalid data in 是软件出错时的提示!