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发表于 2012-11-13 08:48:12
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1判断语句
0 j& w( Y8 |" ?! p2 j if <condition> then% } o* n1 O7 G8 w! p* P/ x% J
<statement sequence1>;
6 `) M1 [! M* b5 Y% f3 z elseif <condition> then5 a* n) l j; o; N* z5 _
<statement sequence2>;
1 B5 Y: Y, N2 J0 [6 l) b' @ L else " ^/ k7 W, K8 G& i/ K( j0 W
<statement sequence3>;3 Q# i; Q% T: x# w
end;/ C) C% [" W& w$ J2 k; t# o
如果分支比较多，用：0 v# ]0 {) r5 ?: g$ y
inspect <expression>7 w1 O4 w- v. P# h
when <constant_list> then0 u2 K$ o7 n% |
<statement sequence1>;
- v: Z2 z0 R! f, e when <constant_list> then& q% l" C; l/ P0 m x& j
<statement sequence2>;
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else
! {7 g4 }+ W/ `8 X+ d% D( S, p <statement sequence3>;
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, q) w" Q# |+ }) m& J9 n9 ]( C, u2循环语句
* q& Q6 {* t3 L. \ (1) from <statement sequence1>
+ E6 b- P* G+ w2 L until <condition> loop2 z$ H) D. _% o
<statement sequence2>;' j" V- Y8 H$ [: B" y& X
end;; ^1 m+ S1 j0 A: d/ r2 S
(2) while <condition> loop8 S3 E2 G: W& l" u
<statement sequence1>;
5 s) T8 E: u0 a end;! i1 `7 j. ^& j) g$ `: I
(3) repeat
4 G/ }$ i( Z# B6 E <statement sequence1>;* K5 Y$ m% T/ V; w8 j: l
until <condition>;$ q8 D8 N* K1 |- S F
(4) for <condition> to <condition> loop# V' Z+ c& V/ i: _* s) N( q. ^
<statement sequence1>;4 l" J9 P) Y5 [
next;
# X$ a0 N1 g" i' W1 J* f* C1 M3中断语句
, y: n; n- k9 j waituntil <condition> prio <integer expression>;
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: ~! Z+ W0 F8 Y/ \
以上为常用的函数！
' t8 v3 p" D% X& ]还有很多，如有需要我把资料发到你邮箱里 ' g) V& v% ~/ b# [3 E! m P
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