C、薪资提成

Question

是的，这是作业:

One chemical company pays its sales people on a commission basis. The sales people receive $200/ week plus 9% of their gross sales for that week. For example, a sales person who sells $5,000.00 worth of chemicals will receive $200 plus the 9% of $5,000 for a total of $650.

Develop a program that will input a sales person gross sales an will calculate and display that person's earnings.

Example of an output:

Salary is : $650.00

Be sure that in your program you consider the following:

Your program includes:

1. proper case, variable names(meaningful and use conventions)

2. proper organization, indentation, white space, and comments

3. Has the right inputs and outputs, computes correct results, is efficient

我的作品；

#include <stdio.h>
#include <math.h>
#include <stdlib.h>

int main() {

    const double commission = 0.09;
    double gross_sales, salary;

    printf("Enter amount of gross sales\n");
    scanf("%.03d", &gross_sales);

    printf("Your salary for this week: %.03d\n", &salary);
    scanf("salary = gross_sales*commission + 200 %.03d", &salary);

    system("pause");   
}

我不确定我需要做什么 - 你能帮忙吗？

Answer 1

在

scanf("%.03d", &gross_sales); // gross_sales is double

d 说明符用于整数。对于 double

应该是 lf

要打印变量的内容，您不需要为地址运算符添加前缀，因此

printf("Your salary for this week: %.03d\n", &salary);

错了，但应该是

printf("Your salary for this week: %.03lf\n", salary);

但是，您现在可能已经意识到此时无需打印工资，因为您还没有读取该变量。事实上，标准(6.7.9->10)说:

If an object that has automatic storage duration is not initialized explicitly, its value is indeterminate

最后的

scanf 需要与第一点中提到的相同修改。