问题描述
使用 switch 语句检查变量是否大于某个数字的最佳方法是什么?或者您建议使用 if-else?我找到了这样一个例子:
What is the best way to check if variable is bigger than some number using switch statement? Or you reccomend to use if-else? I found such an example:
int i; if(var1>var2) i = 1; if(var1=var2 i = 0; if(var1<var2) i = -1; switch (i); { case -1: do stuff; break; case 0: do stuff; break; case 1: do stuff; break; }
关于在 switch 语句中使用大于或等于",你能告诉新手什么?
What can you tell a novice about using "greater than or equal" in switch statements?
推荐答案
不确定这是不是你要的,但你可以这样做:
Not sure if this is what you're asking, but you could do it this way:
int var1; int var2; int signum = Long.signum((long)var1 - var2); switch(signum) { case -1: break; case 0: break; case 1: break; }