c语⾔case⼩于,⼤于和⼩于switch语句C
我正在尝试编写⼀个有很多⽐较的代码
Write a program in “QUANT.C” which “quantifies” numbers. Read an integer “x” and test it, producing the following output:
x greater than or equal to 1000 print “hugely positive”
x from 999 to 100 (including 100) print “very positive”
x between 100 and 0 print “positive”
x exactly 0 print “zero”
x between 0 and -100 print “negative”
x from -100 to -999 (including -100) print “very negative”
x less than or equal to -1000 print “hugely negative”
Thus -10 would print “negative”, -100 “very negative” and 458 “very positive”.
然后我尝试使⽤开关解决它，但它不起作⽤，我是否必须使⽤if语句解决它或有⼀个⽅法来解决它使⽤开关？
#include
int main(void)
{
int a=0;
printf("please enter a number : \n");
scanf("%i",&a);
switch(a)
{
case (a>1000):
printf("hugely positive");
break;
case (a>=100 && a<999):
printf("very positive");
break;
case (a>=0 && a<100):
printf("positive");
break;
case 0:
printf("zero");
break;
case (a>-100 && a<0):
printf("negative"); break;
case (a-999):
printf("very negative"); break;
case (a<=-1000):
switch的用法c语言printf("hugely negative"); break;
return 0;
}