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发表于 2012-11-13 08:48:12
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1判断语句. p2 c4 d- H* V# q! n
if <condition> then) U( ]1 @9 I% O) F5 J
<statement sequence1>;/ d4 }+ q1 \* s' u% U
elseif <condition> then+ j# S3 V4 R: J. H# K
<statement sequence2>;9 }6 c) A0 {1 R* n1 \
else
% X# F" _4 f& W' }* K! o$ C <statement sequence3>;
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如果分支比较多，用：/ H' i( C7 i5 t3 t4 `& `% y2 {
inspect <expression>1 j4 e# I; K. ^
when <constant_list> then1 d! u. [5 ?8 K
<statement sequence1>;
( b5 P1 _) F1 ^- ]9 u when <constant_list> then5 v8 H, G% t5 v/ x0 E
<statement sequence2>;2 q4 H! J. K4 m1 M: Q
...
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<statement sequence3>;
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2循环语句
# i$ P) C: V" ` (1) from <statement sequence1>
K6 O, ~4 C/ B1 [, j+ s until <condition> loop
( ^8 `# R) h( o <statement sequence2>;7 r, z q; F, p4 T7 L: x1 r" t* b6 M0 `
end;
) p6 [4 y# V' E (2) while <condition> loop
& z g$ |% h6 y+ G0 D+ M# [3 W <statement sequence1>;) e4 z5 c; S$ O9 z G# f+ F
end;
( n8 y ?; ~1 M (3) repeat * s* d# _8 m, m& s; @& y& Y
<statement sequence1>;
4 i& ]2 ?! g2 a: ~! R, p until <condition>;$ a/ B0 C" ]; ]
(4) for <condition> to <condition> loop6 \* d; Y! Z; O8 |
<statement sequence1>;
, Y! u7 E) K) n" g! ?# ]6 z6 c next;
, }8 \ R. M; k7 ^% i* q9 K3中断语句
$ o; K- M2 e+ t( @' C4 l waituntil <condition> prio <integer expression>;9 s" X! H1 m7 f) o6 n7 N# x# _
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以上为常用的函数！
" R8 U. W# n5 t! ^" F0 Z还有很多，如有需要我把资料发到你邮箱里 : C0 X `9 i" O4 ~& [
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