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发表于 2012-11-13 08:48:12
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1判断语句7 o% }8 z2 e! j% w
if <condition> then
0 L. ~* K4 i1 d& t9 e" I# E9 |, v <statement sequence1>;
" r8 _! G) L; P8 N; }6 W elseif <condition> then
6 m' V* p2 u/ [3 O8 `# w <statement sequence2>;
" f7 }8 x7 K" F) V" c r. v else . T X$ O( P P5 D
<statement sequence3>;
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如果分支比较多，用：0 [9 }! L' p4 x4 e
inspect <expression>0 i1 y j+ A2 l/ M/ ^) `
when <constant_list> then
4 _+ M* {$ Z! k1 p. A7 b <statement sequence1>;* w' f/ D/ y# [0 g
when <constant_list> then; F$ l0 b3 L1 K$ i2 p8 B% i! E! g
<statement sequence2>;
4 w0 p- z0 s- G/ |* K) a ...
% N3 I( J1 @. u- m2 B: v) | else
u3 R3 t. h) o/ h4 T7 v' D <statement sequence3>;/ k+ i" H) c6 W; \5 H) B+ L: Y
end;' |( ~* V% S4 S) \* Y
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2循环语句( Y7 L5 ~7 ]/ t5 ?3 e8 c$ O4 l
(1) from <statement sequence1>7 a# l$ x' o# n) ^, C2 N' i
until <condition> loop# |1 B3 K3 g. a5 D& e
<statement sequence2>;
3 M2 n T$ A- a end;9 _" ]8 @ p5 s
(2) while <condition> loop
1 m9 _8 {3 M! q* z# a# G <statement sequence1>;
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(3) repeat - ?) j4 A: O0 n" D5 O- Q1 ~
<statement sequence1>;
2 C0 a8 H+ |- j. p until <condition>;
4 v; I: D! X5 O7 M! Q (4) for <condition> to <condition> loop# Y3 `3 ]2 D) e3 U" _* ^1 B' F5 _/ _
<statement sequence1>;
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3中断语句& L0 B* u- t: F' e
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
& r& E# v! C1 O- i还有很多，如有需要我把资料发到你邮箱里
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