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发表于 2012-11-13 08:48:12
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1判断语句8 O- y* x* U' D+ z, c. j2 ?, p
if <condition> then
' T0 }, q; o# D" w <statement sequence1>;9 Q9 h- c* ]. u- y: I
elseif <condition> then
5 K! N; i* b8 a8 {- L1 Y <statement sequence2>;
8 y4 }; t2 G+ [. \ else
) S9 s; Z; X7 ?0 D! U& m9 T <statement sequence3>;
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如果分支比较多，用：% H$ @2 _0 m( i7 d/ Y- V; ]
inspect <expression>* s; F1 j% r1 C
when <constant_list> then, C2 H( {1 u# O, }, ?9 C- k
<statement sequence1>;9 Q! H3 E' {! H0 z3 r$ P
when <constant_list> then( m4 ~. H: W% b
<statement sequence2>;3 d. i! m) H% o( V6 \
...
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<statement sequence3>;9 S7 @' R" h6 j2 ~2 Q5 I2 g! A
end;' t% W! I: Z, ?* T. A/ I
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2循环语句( |* A* W, W- F$ K/ ~% v
(1) from <statement sequence1>8 P6 c: }/ X1 |1 n
until <condition> loop
' ]1 ^5 `7 p e; J6 ^- j <statement sequence2>;6 S& K1 p% J1 A$ A+ P- e7 s
end;
* [) g5 m8 h& g- |0 U& U (2) while <condition> loop
; l4 [7 j' H: h1 y% j8 W I: m <statement sequence1>;
4 c, W/ G; S) ^. [$ }! o end;
# N+ I. t, P- a b4 a0 V (3) repeat
' T. d# M r: \; q <statement sequence1>;8 q+ S1 ^- T- h$ U- e) m
until <condition>;
7 u% l4 b$ }+ i3 Q, n (4) for <condition> to <condition> loop
% {1 ]! k! o% }7 z7 h& r <statement sequence1>;
3 D) k8 B& \% s8 D next;
1 z1 [* O' t6 x9 o7 [+ s9 i3 @& w3中断语句
( @& `0 x1 o7 h" ` waituntil <condition> prio <integer expression>;9 u |. l0 J% C. ~4 {- b- s2 d
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以上为常用的函数！3 u: }; d% N! a0 Y6 v
还有很多，如有需要我把资料发到你邮箱里 0 i/ w! S1 M r: |
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