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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
% I) c$ P% G y% }* `9 J' B* } if <condition> then
" y7 F2 T0 r8 N0 s$ H <statement sequence1>;
0 a7 N; G( A5 m" ^: [ elseif <condition> then, W% k1 R4 m. a6 ~
<statement sequence2>;. K6 j1 F2 r" K3 R& V+ b7 `
else / u0 b8 ~4 H7 w5 v1 B' m
<statement sequence3>;5 C" B+ C/ ~. P/ \) O9 D
end;
1 p5 J2 `+ j) m& c2 Y& H' l1 m4 w如果分支比较多，用：3 n% X# _! _/ [" m0 u' q& i$ s
inspect <expression>
* p- ]" Y6 t" k" a3 I( K* b when <constant_list> then
8 f! `3 D; l3 H2 m* M" k <statement sequence1>;
1 ^' _+ G+ w5 x when <constant_list> then" U, ]& V8 O9 g! _& m
<statement sequence2>;" U" T) g/ [5 K. t$ j3 P. E- P, F
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else
( C- [" L, b& }, C; O <statement sequence3>;9 z- s; }* k2 i5 q) R
end;+ a3 d, y& G2 l
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2循环语句
0 t- ]% v4 T/ a. O- }9 x (1) from <statement sequence1>4 q! T: Z) m. W1 V
until <condition> loop# w1 H/ e" h! M, e
<statement sequence2>;2 X2 k8 R6 o/ \' J1 M
end;
$ c- l3 o0 X' g5 l8 S (2) while <condition> loop6 x8 `( P3 Z6 y. j |( `
<statement sequence1>;! O ]) U$ t t6 X. L9 D
end;0 q, X- F2 W( i* @. @
(3) repeat 4 x- b, A+ x. H/ U$ ^3 z
<statement sequence1>;+ S" N0 f) [: n
until <condition>;" k6 q8 v, p! p2 O
(4) for <condition> to <condition> loop7 M2 K5 L$ H( b J! q) x
<statement sequence1>;
: ~8 ^ T$ e9 Z1 _" v+ D6 `! m next;2 [( T& b8 I# L. ~8 W* t! z
3中断语句6 Q6 o* N3 ]* E1 }% ~) }' h
waituntil <condition> prio <integer expression>;( d+ o2 j8 D5 C% v* G7 k6 {2 P
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: U& ?; R- Y; v4 U- |以上为常用的函数！
2 s0 R1 l% m' r0 x d" L还有很多，如有需要我把资料发到你邮箱里 5 F8 D9 K, x9 `# G( V
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