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发表于 2012-11-13 08:48:12
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1判断语句
# I6 d" e4 i- m1 F7 G S if <condition> then
2 \& u# d# D- P6 g; v8 o, B <statement sequence1>; I$ B5 J% Q1 Z, x s3 }* E1 G7 g2 R3 H
elseif <condition> then# w8 b2 R# A! v% g$ g- n0 i
<statement sequence2>;5 U' t# Z: y! ^
else
9 b$ Z# P7 ]6 B5 f% Z <statement sequence3>;3 t' S, `+ Z1 T1 K1 \% [
end;
8 y2 b3 @+ G' e, G7 k如果分支比较多，用：
7 ]# U9 C4 U9 |3 m3 w) h4 a inspect <expression>
& V9 v. \4 {3 \3 u! G when <constant_list> then
7 G0 E$ `$ e! ^' C3 e' f <statement sequence1>;& s8 p, l) R; Y% }0 M# e. Y
when <constant_list> then2 G" S2 P! F( _/ `
<statement sequence2>;
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<statement sequence3>;# a7 e" v& M* B3 x4 d! g
end;
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2循环语句
' O/ B3 y( N7 v' T/ |5 x (1) from <statement sequence1>
1 |' n* F. Y8 j until <condition> loop3 U; y1 I7 V* W _0 C! u% y G
<statement sequence2>;
& l/ c4 k- a) S. {# a8 P# R' B end;
3 ~# z: \: B9 s6 Z$ e (2) while <condition> loop
# C. P* v% F" S2 l8 f( o2 ~# t" s <statement sequence1>;( L; P& [: H: }, P5 T
end;
) z, x* K" i$ | (3) repeat . [# @* x8 Z8 a9 y
<statement sequence1>;5 f3 l8 P W. l5 G; y
until <condition>;0 h( b3 t' ]. L* V- E9 |" K. _) o; A) s/ P
(4) for <condition> to <condition> loop
' o9 g# p9 c% U" c* }1 @2 k% k% Z <statement sequence1>;0 {% I4 A" d) U/ C3 a
next;- V# x1 Y1 i* }& U0 D; \1 a6 ]
3中断语句0 U- T8 g* ~9 E2 l; F
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
1 P3 S/ }' O( u还有很多，如有需要我把资料发到你邮箱里
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