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发表于 2012-11-13 08:48:12
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1判断语句
( [, y9 Y. h9 @+ l if <condition> then
) K z, C( f z% A4 P <statement sequence1>; ?' B% }# [5 T2 `$ `/ p
elseif <condition> then
* E1 |* _6 ]5 i <statement sequence2>;
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<statement sequence3>;
# {# ?- {0 n# Z8 y0 K3 _% i end;
# I5 k% b% K9 ?2 q如果分支比较多，用：
n2 u. w' J; E3 S" K5 F' a inspect <expression>4 w& {- {) O2 ]3 |
when <constant_list> then' J7 h9 H+ t% s) O: u1 u
<statement sequence1>;
1 y; [5 {) L7 {- t$ U9 a when <constant_list> then
+ c& A5 K. d; z0 M/ r, P; x0 V <statement sequence2>;2 c; |( V; a" u( J4 g
...
9 r8 U7 o) y, N$ R+ F% d else
' R# F) q% `& f1 e" C* ?8 E <statement sequence3>;
3 `6 _6 r8 y _" Z0 Aend;
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2循环语句# N% _0 a; t8 O3 L8 N
(1) from <statement sequence1>
+ }% `4 z& |9 R) C1 U# l until <condition> loop# B: W& R5 O/ [! R. V+ ?6 Z v
<statement sequence2>;
0 V; X7 b4 [/ k7 v5 d end;
/ i9 k! D% ]- @ (2) while <condition> loop6 ?1 @$ M5 ^' U) V) ?
<statement sequence1>;. M- N" ]- G7 h
end;/ X O6 |8 O. E6 }! x- U
(3) repeat " w: X2 y2 V( e. J2 o: L; B
<statement sequence1>;
$ N e9 o8 w& ?9 k8 D% } until <condition>;
e1 _' R$ ]) x9 I (4) for <condition> to <condition> loop: I% \7 s9 y1 M, K3 Z8 `/ i- }2 R
<statement sequence1>;
; Y% T* ]5 V7 H: H6 ]/ w next;2 \0 g: G2 W9 h, d, t+ F
3中断语句, B8 R0 Z& v: n! x; w
waituntil <condition> prio <integer expression>;
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以上为常用的函数！! c; D: C5 {2 |
还有很多，如有需要我把资料发到你邮箱里
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0 \! }& e% y% R. L- H7 Y9 f K6 Z7 r/ A5 T
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