编译后的代码如下所示。

ConditionStr2:

00008188E1A01000MOVr1,r0

>>>SWITCH\#26if((unsigned)condition>=15)return0;

0000818CE351000FCMPr1,#0xf

000081903A000001BCC0x819c<SWITCH\#27>

>>>SWITCH\#26if((unsigned)condition>=15)return0;

00008194E3A00000MOVr0,#0

>>>SWITCH\#30}

00008198E12FFF1EBXr14

>>>SWITCH\#26if((unsigned)condition>=15)return0;

>>>SWITCH\#27return

0000819CE28F005CADRr0,{pc}+0x64;#0x8200

000081A0E3A02003MOVr2,#3

000081A4E0200291MLAr0,r1,r2,r0

000081A8EAFFFFFAB0x8198<SWITCH\#30>

>>>SWITCH\#33{

从两段汇编代码的分析可以看出，使用跳转表需要240bytes，而第二种做法只用了72bytes。