Page 42 - PIC18F4550微處理機C語言設計實務

PIC18F4550 ฆஈଣዚ C ႧԊணࠇྼਕ

܁ѓΐᑘʘܝd̙˸̴͜Ը܁ѓΐᑘᜊᅰdא٫ਗ਼ᜊᅰΤ၈ٜટ׳ίΐᑘɽܼ໮
ܝࠦ܁ѓfԷνj

enum Direction Direction1;

א

enum Direction {
Up,
Down = 3,
Left = 4,
Right,
}Direction1;

߰ӚϞՉ˼ᜊᅰࠅԴ͜Νᅵٙΐᑘۨ࿒dɰ̙˸޲ଫΐᑘۨ࿒ٙΤ၈ٜટ܁ѓΐ
ᑘٙᜊᅰfԷνj

enum {
Up,
Down = 3,
Left = 4,
Right,
}Direction1;

ʘܝࠅᛘᄳ༈ΐᑘᜊᅰdۆٜટԴ͜ΐᑘʫʩ९ٙΤ၈dϾʔΎԴ͜Չᅰ࠽fԷνj

Direction1 = Up;
Direction1 = Left;

אٜટкᓙdԷνj

switch(Direction1){
case Up:
y++;
break;
case Down:
y--;
break;
case Left:
x--;
break;
case Right:
x++;
break;
}

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