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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
V3 w2 G4 Z% a! K; [! f: I2 _ if <condition> then
+ v, h/ |/ n6 g; [0 Y <statement sequence1>;5 h/ t- h. u; R( g+ H2 p/ m
elseif <condition> then( `2 q! Z) q% X% d, P, F
<statement sequence2>;: V8 R9 r, f4 l- \% p$ y& L% V
else 4 e: q$ Q# V4 _! e2 w" t
<statement sequence3>;. q& g0 m, q, J0 h
end;+ I' H/ Q, L- @- Z8 F
如果分支比较多，用：
: M3 l3 J- j1 s9 H8 f inspect <expression>
7 r" ]$ \+ I y. F when <constant_list> then
( }2 Q$ ~( h, S. I* @8 `5 y/ k <statement sequence1>;
9 N# [ X) y0 r0 W when <constant_list> then5 N1 A0 b u' b+ o) W# L) p) I
<statement sequence2>;
+ i7 A. X% g1 S0 q o ...
( P5 S6 j9 A) I- [$ r {& T else
5 e3 [$ w$ k3 t0 f <statement sequence3>;4 c/ P; ^8 G* C/ P
end;
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2循环语句
5 E2 }9 A$ M6 u/ X8 @6 I$ R (1) from <statement sequence1>! i b/ r& _; d4 O& _) {
until <condition> loop
7 k- }7 V/ p6 u. ?8 n! V# M <statement sequence2>;
# M& b: J; _1 ^- ` end;
- @/ w7 i8 `" {. a, [ (2) while <condition> loop9 R0 A7 X5 ~, r- j3 e! `
<statement sequence1>;2 U/ j+ R4 ]( M/ B
end;
( x% e0 b) X s& {: I9 ~: y/ _ (3) repeat ' C9 g$ ^$ V. Z' R/ l3 A3 [& A" i
<statement sequence1>;
5 y6 I4 ?0 S% ^$ u- w until <condition>;5 ?$ P& A/ p6 I3 m2 I
(4) for <condition> to <condition> loop* H1 M$ _# j! |5 x2 L, i! b
<statement sequence1>;" T4 U7 Q' E- K# k
next;* B; M6 H6 N5 \, a$ i' u# E
3中断语句% t" _$ i9 G, u+ W5 v1 q( @
waituntil <condition> prio <integer expression>;
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以上为常用的函数！: @* h5 L2 ? y, D7 ^
还有很多，如有需要我把资料发到你邮箱里 $ J0 I; D3 I+ d( x5 }, e
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