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发表于 2012-11-13 08:48:12
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1判断语句- E* N% L7 I, M
if <condition> then. o8 x, m9 b3 W! f
<statement sequence1>;
2 v+ h8 V8 {# j9 [, P elseif <condition> then
2 q5 U# U( F# }* W) o" h <statement sequence2>;
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. \" c3 [6 h" ]$ I0 Q <statement sequence3>;, T7 l3 r& n3 @, L$ u
end;
$ i5 ?3 |8 J5 t" z如果分支比较多，用：
2 N, x" S3 R0 V" r& S0 s/ U inspect <expression>( u- w) K/ C. F# U
when <constant_list> then- |5 M) u# K* U7 V0 x
<statement sequence1>;5 n8 L' C" O" }' T
when <constant_list> then
: M: o; d. H$ D$ n6 {4 i+ \# j <statement sequence2>;- F* e! c8 C) g/ ^
...
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<statement sequence3>;
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2循环语句; s, f8 I4 X9 r8 E) N1 [3 `1 {! n
(1) from <statement sequence1>+ v1 u/ Z4 Z7 B* h
until <condition> loop
& ]: b4 ?- a. O <statement sequence2>;4 Z# O+ f D' c9 \9 w+ _! c
end;
: T9 i1 u- P. b2 z$ B9 t- C (2) while <condition> loop+ V+ J6 {' i0 f& w. q
<statement sequence1>;4 \4 K6 d# {" R" B$ D$ @
end;' v; k0 v6 n: a& P2 _5 O- C
(3) repeat 4 {+ ~7 R$ r x" s9 y. o
<statement sequence1>;+ S6 D E. p! q2 Z* u
until <condition>;
$ b) {! [; G$ z4 A (4) for <condition> to <condition> loop( d% Z* K4 J9 X3 `
<statement sequence1>;
; N4 d: {) \" a8 s next;, K# V, m# C; q5 k
3中断语句, L* }$ M5 V; P4 N4 G5 [! w9 Y; H
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
) v0 H# b4 N! M3 n7 K还有很多，如有需要我把资料发到你邮箱里 . m2 m) M: y/ T+ z, E7 e
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