C语言，遇到“Expected expression”，怎么也不明白%>_<%，麻烦热心的大侠指点一下吧，不胜感激🙏

Question

// 要求输入工作小时数，超过40小时，算1.5倍时间，3阶税率变化，求输出工资总额。

#include <stdio.h>

#define rate1 = 45;

#define rate2 = 75;

int main(void){

double work_hour， row_salary, rate_salary;

printf("Please enter your work hours:");

scanf("%lf", &work_hour );

printf("work hour = %lf\n", work_hour);

if (work_hour <= 40)

row_salary = 10.00 * work_hour;

else

row_salary = 400.00 + (work_hour - 40) * 15;

printf("row salary = %lf\n", row_salary);

if (row_salary <= 300.00)

rate_salary = row_salary * 0.15;

else if (row_salary <=450.00)

rate_salary = row_salary - ((row_salary - 300)*0.20 + rate1);//这句报错 expected expression

else //这句报错 expected expression

rate_salary = row_salary - ((row_salary - 450) *0.25 + rate2);

printf("rate salary is %lf.\n", rate_salary);

return 0;

}

Answer 1

第一个else后面那个语句少了;

第二个if的两个大括号删掉

必须

或者

Answer 2

去掉define的等号和分号