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发表于 2012-11-13 08:48:12
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1判断语句6 _5 \ O' \* R0 H. B& t
if <condition> then
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elseif <condition> then% F0 J) G5 x! _3 l2 y6 R- ]+ f& M: @9 Q
<statement sequence2>;- X5 H+ f. l( F% S% I
else 6 J2 Y! N! r$ p
<statement sequence3>;
2 f* |9 o3 K: ~0 h0 g0 E end;
) |* C i& C L- j$ M6 {如果分支比较多，用：1 J$ f y. e9 a! Z4 g) k2 h
inspect <expression>7 I. r. z; W" P8 b( _
when <constant_list> then
' [9 g/ ~+ e9 u <statement sequence1>;# l/ Y' p) L8 Y! \% Q
when <constant_list> then* ^# E0 O0 o) V: g( N5 k8 Y
<statement sequence2>;
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<statement sequence3>;. O5 Q% g5 L2 X6 ?
end;6 q9 h* \" q( |! p
3 b1 [- s. t* R7 w8 `2 ~/ s2循环语句
$ l3 M% x; X3 L8 D (1) from <statement sequence1>
: p1 X( t4 o: u0 ^% F until <condition> loop
$ } I2 S: b H <statement sequence2>;5 D$ b( [ ]5 R
end;+ l- ^9 n( I9 r1 \! Q/ }
(2) while <condition> loop
9 w$ @# e8 V, x$ G/ r4 D <statement sequence1>;
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(3) repeat 6 F- v* C: I/ _2 k
<statement sequence1>;
# X) n& W0 g+ v3 F q; x8 w until <condition>;) s0 h1 S* D# H0 E! G% K; ]9 b8 m
(4) for <condition> to <condition> loop9 X: |: \+ S1 u6 l b% ?+ `
<statement sequence1>;. C# f$ v g( b- k" W* ]
next;& S, B& |% Y z
3中断语句
- D$ E+ M% u9 E waituntil <condition> prio <integer expression>;
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* [# \) L8 S6 A, _0 f以上为常用的函数！3 H3 f1 e1 K+ N, w0 k
还有很多，如有需要我把资料发到你邮箱里
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