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发表于 2012-11-13 08:48:12
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1判断语句; ^6 z* O$ z9 d' Z5 L0 l
if <condition> then
; Y. `7 p+ h: `, ~: E <statement sequence1>;
9 O7 \, L2 _7 U' [9 B elseif <condition> then
9 c* ]' z. {6 p- P, w3 i0 K# B <statement sequence2>;
Y$ _' k6 H$ D1 F2 B& Z! l% y else # u3 p) _$ ^1 G2 Z: D
<statement sequence3>;4 R+ q: E) A* `) ?1 @
end;
& `( F$ E& @* e+ C5 z4 M+ L如果分支比较多，用：
6 a* r% o, c" v2 C# ?# ^4 p inspect <expression>4 K% T6 p8 T+ Y7 o0 I) R
when <constant_list> then! I! z; |# g* G# P/ g
<statement sequence1>;' W5 h7 M8 t' d w+ s2 Q
when <constant_list> then5 [' E% H& E$ w0 K* q+ |( t
<statement sequence2>;5 N& t7 Q% O$ a2 _8 i$ ?
...
2 `, G! A# B: R- R$ p5 B% z else! T J/ [! Z/ C. k
<statement sequence3>;
4 X( _6 z: H; N' m) I8 ~3 ]end;+ I+ v7 ?1 @8 V
' d2 s4 j" @" b4 d: {7 ]* X, o/ z( j2循环语句! y2 f: t) m6 l9 q
(1) from <statement sequence1>
) T$ i H" X9 l7 \ until <condition> loop
) Q( x. Y" Z' n5 g' k <statement sequence2>;' M" X9 l, Y5 N( t8 N! n1 K
end;
+ I2 ~% Z6 ^$ J" D$ c (2) while <condition> loop! o7 K1 r {) _( p1 F. b0 M
<statement sequence1>;3 }! ?) H0 ^2 M; R8 X4 D' v
end;) n% M- v& k, |0 n
(3) repeat $ C& i0 O' h3 i2 z/ B
<statement sequence1>;
& G/ t3 C4 m I) H& a8 | until <condition>;
, w v# v, K5 l3 `. L! [; w (4) for <condition> to <condition> loop
* R: O7 T; N+ P' B6 c4 j <statement sequence1>;
. l- O+ i+ b# J+ u4 B next;
( j& e: { E" ?, O; p6 F, T1 N- Y2 @! m3中断语句2 ~5 g- c8 w4 D
waituntil <condition> prio <integer expression>;
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7 T) x" T8 S* A- y7 b8 s3 q H以上为常用的函数！3 G# H, J. z) |! y
还有很多，如有需要我把资料发到你邮箱里 3 n% H) B1 u, t. L$ s3 o
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