切换值的范围 [英] Switch with range of values

问题描述

因此，我根据雇员为公司工作的年数确定雇员的基本工资。

So I am to determine the base salary for an employee based on an inputed number of years the employee has worked for the company.

我必须这样做开关结构，我给出的范围如下：

I have to do this using switch structures and I am given ranges as follows:

工作年数_ __ _基本工资

Number of years worked____Base Salary

 0 – 5                  $ 9,500 
 6 – 11                 $12,700 
12 – 17                 $15,300 
18 – 29                 $22,600 
 >= 30                  $26,800

那么，如果我不想对所有的数字？

So, how do I do ranges for the cases if I don't want to right case for all of the numbers?

这不是一个麻烦，这一个，但然后我必须找出佣金基于销售，有范围如$ 0 -3,999.99和$ 16,000-23,999.99。

It isn't too much of a hassle with this one, but then I have to figure out commission based on sales and that has ranges like $0-3,999.99 and $16,000-23,999.99.

推荐答案

所以对于第一部分，你只需要声明一个开关，路径。像这样：

So for part one, you just need to declare a switch where multiple cases follow one code path. Like this:

int baseSalary
switch (yearsWorked)
{
  case 0:
  case 1:
  case 2:
  case 3:
  case 4:
  case 5:
    baseSalary = 9500;
    break;

  case 6:
  case 7:
  case 8:
  case 9:
  case 10:
  case 11:
    baseSalary = 12700;
    break;

  ... etc ...
}

第二部分，对于每一个数字的开关，在几千的范围内是相当不可行的，但有一点智能划分，它可以同样容易。如果你把2000除以1000，你得到2，如果你除以1000，你还得到2（剩余500）。使用这个，你可以生成一个switch语句：

For the second part, a switch for every single number in a range of thousands is pretty unfeasible, but with a bit of smart division, it can be made equally easy. If you divide 2000 by 1000, you get 2, and if you divide 2500 by 1000, you also get 2 (with remainder 500). Using this, you can generate a switch statement:

int sales = 2100;
int salesRange = sales / 1000; // (salesRange = 2)

int commission
switch (salesRange)
{
  case 0:  // $0-999 sales
  case 1:  // $1000-1999 sales
  case 2:  // $2000-2999 sales
  case 3:  // $3000-3999 sales
    commission = <some number here>;
    break;

  ... etc ...
}

所以，这假定必须使用开关是学校作业或类似作业的一部分。正如其他人提到的，你最好使用带有范围的if语句（例如 if（sales> = 0&&& sales< = 3999） ）比使用开关这种东西。

That being said, this assumes that "have to use a switch" is part of a school assignment or similar. As the other people have mentioned, you're better off using if statements with a range (e.g. if (sales >= 0 && sales <= 3999)) than using a switch for this kind of thing.

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