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发表于 2012-11-13 08:48:12
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1判断语句
3 R$ Y2 \" r9 u if <condition> then
5 @6 _1 i1 u3 O# A s+ E: I <statement sequence1>;
* {% [! u% {: Y elseif <condition> then
, q% H' j3 F$ F <statement sequence2>;2 A% B: k) A* v1 f
else . M+ Q% N) T5 m$ M4 ~) _: @! b
<statement sequence3>;. X2 L3 t1 v, F$ A' k
end;
! m& h7 z0 Z3 k8 Y3 E! P如果分支比较多，用：9 M, I5 g. r. R) |8 k/ i1 x% a
inspect <expression>
$ V% V: c$ J5 I4 `& O! `) N6 t when <constant_list> then
" \; a5 M% s* K: ?1 t' c) z <statement sequence1>;
8 G1 {- F; g, z2 g2 r when <constant_list> then8 x" S5 y2 r: ~
<statement sequence2>;
0 D% }( n2 D' Q; { ...
$ g O# O" A; o& }! r* A else
& m* l$ ~% c& e% }5 r <statement sequence3>;
. q; r3 L% t9 ]4 qend;
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% n8 I, W) T/ Z! G7 o: O% P2循环语句* y2 I5 I7 H2 A8 f1 v
(1) from <statement sequence1>
" w5 F. Z/ q" F$ R3 o5 | until <condition> loop
3 h/ j1 a# M9 ^6 D4 H. r; ` <statement sequence2>;# T$ | s5 y& G; p! B2 ^' y
end;" X3 \8 j6 N8 N9 u( {% a
(2) while <condition> loop
' A( G+ E; `8 G <statement sequence1>;0 L, ]. ~, I+ |1 s/ L
end;
4 ^& x v5 y9 ^4 `- J (3) repeat - v4 S1 g0 U, T* q5 q3 E! {
<statement sequence1>;
* \+ j2 u5 }6 p8 D. v$ c until <condition>;. ~9 E3 F. L0 Y( v7 b2 ?* U
(4) for <condition> to <condition> loop
. V4 E- y$ k0 f$ x$ k <statement sequence1>;: O6 L/ e# k( o3 n; |$ _3 \% U$ F7 o
next;
7 ~6 V2 v& G+ M5 n% y8 H/ B# F3中断语句( B; h. E% F8 _9 h
waituntil <condition> prio <integer expression>;
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0 ~% y( Q4 B0 `/ a
以上为常用的函数！; u' c, b/ |( N! R$ M
还有很多，如有需要我把资料发到你邮箱里 8 C% ^4 G( Z8 N
K( Z+ ?1 \" W2 z7 z7 Z9 N
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