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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* K1 @/ X# d, S: D/ c; _+ u6 T" o if <condition> then
( D7 n/ e9 v/ L( ?: w <statement sequence1>;6 O) R; d' t& m% P; T4 f
elseif <condition> then
; y: u6 o; F$ a0 \& O/ P7 ~ <statement sequence2>;
, n o9 i' T0 L- J8 r$ f: b else % T; }* x/ J# y
<statement sequence3>;
/ b: v5 ^/ W5 j5 z( v | end;
& A* L: ~9 P7 k5 i* z: Y) `# A- n如果分支比较多，用：
! ?7 _ N; Y7 s inspect <expression>
+ }# I2 K) H* s when <constant_list> then4 ]3 h* v8 h3 \
<statement sequence1>;
+ q2 |- m* S$ F; Z) ~% C when <constant_list> then
. _0 S8 Y8 a$ b6 Y, j1 S. t5 M <statement sequence2>;
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else/ f D) n$ v2 G1 x3 I8 m9 y5 k6 X
<statement sequence3>;( P, F7 z1 P' C, y% w; F
end;
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2循环语句
$ M- Z8 R g# M# J/ Y- t (1) from <statement sequence1>8 |. W. i; A |" F$ L; b
until <condition> loop" j" D) `/ \! S5 i/ ~0 X: H
<statement sequence2>;
2 T+ x3 o3 m* l4 D6 t+ \ end;" @" S9 E* ]+ N i5 `
(2) while <condition> loop
. l6 F0 z% _8 N% E, n' I7 A. o4 R <statement sequence1>;
& M- ~0 J4 e7 ?( X9 b% R+ c* j end;
) Z& k2 G2 n D+ X; T, L) V# s" K (3) repeat & Y1 Z7 K0 F6 W) F- B. c
<statement sequence1>;
# A5 d+ L! k! S) d' o. X) i% }/ T until <condition>;( s9 h! `) {' i$ C9 A5 k
(4) for <condition> to <condition> loop
0 K" q$ G$ V& O$ U <statement sequence1>;
* w9 I6 O2 T8 n v9 ` next;5 |7 ^! P: {/ B6 q% W9 a. K
3中断语句6 W7 L5 Z8 n( ]* X& p7 s( A: @& p k
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
9 E7 X' I& a" U% {还有很多，如有需要我把资料发到你邮箱里 * S& {/ K! N, U1 r
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