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发表于 2012-11-13 08:48:12
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1判断语句
* Y5 ^+ u; W7 H( } H o if <condition> then
6 V* I2 ~" ^2 T/ Z) H4 a- y7 Z <statement sequence1>; y. }' }; Q: c; i9 E
elseif <condition> then" ]+ J; j& T& |3 Z5 b8 ]. f0 X+ f- Z( u
<statement sequence2>;
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<statement sequence3>;
* Q* n/ }: u1 v3 j- N$ a7 g6 b/ g end;
$ z8 M" o- \; n1 o; _6 ?如果分支比较多，用：
* y R- \- w) i" e7 L& I inspect <expression>
/ Q, g/ ~3 ? n when <constant_list> then
, I! H- e c& }4 p0 m <statement sequence1>;
6 v$ q! A2 W4 a6 t. z when <constant_list> then/ t! t, s( u: D5 X) V5 B
<statement sequence2>;6 @( O$ O/ x, V1 W! T$ ]' H# n
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else9 g6 a+ L+ ~+ E5 |, B0 n
<statement sequence3>;
; L3 r4 c2 l( |1 ]end;
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( G' T1 O7 K4 \( R4 {! x. B; i2循环语句
* n4 Y- ^( c( j. b7 s3 f/ R$ P: @ (1) from <statement sequence1>9 l$ L: v% x3 E7 s3 Q4 k
until <condition> loop$ M! H& p( d! P. S' R0 V/ ^) D8 ~
<statement sequence2>;
/ E" E" n/ J/ d end;. X. i) b" P4 C- M, f% B3 m% } c2 f
(2) while <condition> loop* r7 X! \8 n) \
<statement sequence1>;
1 v- e2 Q6 q* s8 m; u end;8 p7 S' D" ]; _5 _( c2 S9 G" B
(3) repeat - w% n% h1 H) w! A) ]% m' ^7 }
<statement sequence1>;
, `2 q/ z% X4 K3 Z* m until <condition>;4 ~& e8 j' D# {
(4) for <condition> to <condition> loop
" P5 B& H+ T1 A5 }4 m2 f <statement sequence1>;$ d& h0 L7 G/ o" Y$ Q2 I5 r
next; f* ]$ a$ ?& E/ O# W" ?; E$ ^
3中断语句, l" y( v1 m9 {. V
waituntil <condition> prio <integer expression>;
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* M, b; C% J+ g' b4 j' Q( u以上为常用的函数！
" m7 R6 P8 N' r! J还有很多，如有需要我把资料发到你邮箱里 $ k; m/ M" t* G" S3 S
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