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发表于 2012-11-13 08:48:12
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1判断语句; d4 F& r. L5 s2 |
if <condition> then
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elseif <condition> then) h4 \. Z5 m1 n) @6 q
<statement sequence2>;
# C6 p' c9 {+ F( s9 M; Z else
1 V. i+ C6 e% d <statement sequence3>;0 q! Z! Q! D1 T4 g( z& C
end;" ?2 K, k# e1 t% q0 k" G# L% f
如果分支比较多，用：; G4 ] k+ E( ]2 ]/ A+ w1 I
inspect <expression>
9 F, m+ y5 ~+ g$ {/ v6 { y1 c when <constant_list> then; r9 B0 ] C$ ^9 Y+ ]' X
<statement sequence1>;9 h; w/ i$ [7 O
when <constant_list> then
& V+ f8 ]0 Y- U <statement sequence2>;7 k: I* U# z; A0 ~' X {
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else
5 X' |" W2 i# V7 ~( B+ r3 U <statement sequence3>;
1 T k. {9 @/ O) m0 ?5 ~2 }& g0 Xend;
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( ?8 r: V* `" k5 {' f; D& O2循环语句% w/ J' ]. `+ J. O* z+ G: h' h4 s" b
(1) from <statement sequence1>
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<statement sequence2>;
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(2) while <condition> loop7 J3 w# e5 s0 M' | Q- E7 P
<statement sequence1>;
R6 J$ ]! F% x5 H, k; o5 t; c end;3 @4 B {3 ^* a5 V, J3 r
(3) repeat
- y/ f4 m) M. s4 T3 u' Z: [ <statement sequence1>;$ X4 W, T( f0 ]7 D% M3 U2 `
until <condition>;
& |. D8 W1 A- D. E! x! Q7 I (4) for <condition> to <condition> loop
- S( Q- E: l6 E/ x1 h/ B <statement sequence1>;
f& P; ~: J! x O$ ?" V N next;1 x( f& {: k: ?
3中断语句( }9 a7 p7 M8 M, N% K
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
& p3 x# V% T3 U2 u还有很多，如有需要我把资料发到你邮箱里 ) w) o' L0 D! I4 |2 X/ o
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