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发表于 2012-11-13 08:48:12
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1判断语句
0 \5 j5 ]/ b2 ?% k3 J# i if <condition> then
- }/ m$ q, h9 Y8 h <statement sequence1>;
2 J* F0 C- s$ T$ t2 m- F$ f- t elseif <condition> then( x B: Y9 M2 |2 ?7 W6 V
<statement sequence2>;( Z8 h* @3 v2 d! f0 u
else
2 `: X3 W4 `" `' B <statement sequence3>;! X) s1 l7 M. z
end;* s" ^. |0 C3 T6 [4 }/ H
如果分支比较多，用：
& j# m: U0 B, z: p inspect <expression>$ u$ Q2 h, B! g5 n/ D/ x9 y1 K
when <constant_list> then- v+ d, z/ e* G2 Y' \4 t
<statement sequence1>;
" M* r: Q6 _2 } when <constant_list> then
8 H- ?' |: i$ l- ] <statement sequence2>;
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else
& { x; V+ S" y+ y/ x/ D( { <statement sequence3>;
% m1 d0 ?5 _/ O# @8 n, C9 Y8 Vend;; e2 C) [8 u) C. O& H% r
5 q( ]9 Y& T* `+ {! U2循环语句
8 A+ B! J/ Y- | t( @0 w (1) from <statement sequence1>6 W% p* V+ e% n
until <condition> loop
' x1 o9 p; Z7 t, y! j2 T0 q <statement sequence2>; b1 S5 b% E! t L. ~* G- p, H
end;
: Q* A& g5 \6 d9 X+ E (2) while <condition> loop
@( T, b- v3 U% I7 ] <statement sequence1>;
7 {6 k* O5 C; W end;
8 `3 ?9 z* I5 Y; F# b. O$ @ (3) repeat / B% v3 m$ F" M" {# g
<statement sequence1>;
: w9 T& [1 K( ^6 `1 J' B2 ` until <condition>;1 q& w' v. _1 a8 a
(4) for <condition> to <condition> loop/ G. z6 k, y: |$ m+ y, U H
<statement sequence1>;5 c" _8 r. Q3 [& {! ?+ j/ [; p
next;
) v+ ?. J+ l: c: d$ t1 s3中断语句* @' m+ a6 y. p$ X6 l* t
waituntil <condition> prio <integer expression>; P6 e9 Y& D5 K1 A& p
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以上为常用的函数！% {; M* @4 n% `! }9 T; `5 o
还有很多，如有需要我把资料发到你邮箱里 . a* K+ r; E$ {% G' l' V3 ^
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