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Topic: case 语句求救

1.case 语句求救	Copy to clipboard
Posted by: wuyoubei1 Posted on: 2005-09-08 13:16 1.if(score >=90 && score <=100) finalScore="甲"; else if (score >=80 && score <=90) finalScore="乙 "; else if (score >=70 && score <=80) finalScore="丙 "; else if (score >=60 && score <=70) finalScore="丁 "; else finalScore="戊 "; 用更简单的方法写出来（不能用逻辑表达式）

2.Re:case 语句求救 [Re: wuyoubei1]

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Posted by: why
Posted on: 2005-09-08 13:39

I don't think it is a good idea to use select-case.
Moreover, think about when score is greater than 100 or is exactly 90, 80, or 70...

Anyway,
简单的方法 :
if (score >=100)
...
else if (score >=90)
finalScore = "甲";
else if (score >=80)
...
else if (score >=70)
...
else if (score >=60)
...
else
...

简单(?)的方法 :
finalScore = (score >=100) ? "xx" : ( (score >=100) ? "甲" : ( (score >=90) ? ......

3.Re:case 语句求救 [Re: wuyoubei1]	Copy to clipboard
Posted by: wuyoubei1 Posted on: 2005-09-08 16:35 我只是个新手，我想知道case 语句的一些知识，麻烦你帮忙啊。把这道题用case语句的形式表示出来，好吗？谢谢！

4.Re:case 语句求救 [Re: wuyoubei1]

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Posted by: why
Posted on: 2005-09-08 21:19

You should get a introductory book to read...


switch (score) {
case 100: 
case 99:
... // fill in case 98 to case 91 here
case 90:
  finalScore="甲 ";
  break;
case 89: 
... // fill in case 88 to case 81 here
case 80:
  finalScore="乙 ";
  break;
case 79: 
... // fill in case 78 to case 71 here
case 70:
  finalScore="丙  ";
  break;
case 69: 
... // fill in case 68 to case 61 here
case 60:
  finalScore="丁 ";
  break;
default:
  finalScore="戊 ";
}

5.Re:case 语句求救 [Re: wuyoubei1]	Copy to clipboard
Posted by: ge_zwj83 Posted on: 2005-09-09 11:24 case看起来很麻烦

6.Re:case 语句求救 [Re: ge_zwj83]	Copy to clipboard
Posted by: why Posted on: 2005-09-09 11:35 ge_zwj83 wrote: case看起来很麻烦 Only because it is not appropiate to use switch-case here, sometimes it could be quite elegant. Anyway, I always try not to use such syntactic sugar.

7.Re:case 语句求救 [Re: wuyoubei1]	Copy to clipboard
Posted by: wuyoubei1 Posted on: 2005-09-09 12:59 谢谢各位

8.Re:case 语句求救 [Re: wuyoubei1]

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Posted by: nik
Posted on: 2005-09-12 17:17


int tmp = score/10;
if(tmp > 10)
    tmp = 10;
switch(tmp)
{
   case 0: 
   case 1:
   case 2:
   case 3:
   case 4:
   case 5: // code of score < 60 && score >= 0
               break;
   case 6: // code of score <70 && score >=60
               break;
   case 7: // code of score < 80 && score >= 70
               break;
   case 8: // code of score < 90 && score >= 80
               break;
   case 9: // code of score < 100 && score >= 90
               break;
   case 10: // code of score >= 100
               break;
   default: // code of exception case
}

9.Re:case 语句求救 [Re: wuyoubei1]	Copy to clipboard
Posted by: nik Posted on: 2005-09-12 17:18 靠，怎么空格输不出来？？

10.Re:case 语句求救 [Re: nik]	Copy to clipboard
Posted by: why Posted on: 2005-09-12 19:49 nik wrote: 靠，怎么空格输不出来？？ use our [ code ] tag to format code. HTML would "eat up" white spaces.

Topic: case 语句 求救

Topic: case 语句求救