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发表于 2012-11-13 08:48:12
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1判断语句
. _3 ]; J' H% [; |$ J6 m/ }. T if <condition> then6 V" v% \% |7 ~5 i( a# @+ g
<statement sequence1>;! S0 s& B* G$ ~6 u& ]1 w
elseif <condition> then
# E( m* z% e% q) F+ [& s2 W <statement sequence2>;9 Q/ O! w3 p/ f
else
7 H. S C5 a- z. W1 @; G9 k <statement sequence3>;
* M" m7 a% s$ Q5 A9 d end;
6 ]& K1 }6 e8 T+ N如果分支比较多，用：* W' R2 R8 b, O* ?7 m
inspect <expression>
- q! d- P* }" u: k when <constant_list> then
0 Z$ q# r$ C# K0 X+ U2 t <statement sequence1>;
$ O, o' G4 v$ v( n6 K0 h R8 F3 {* _ when <constant_list> then
0 t0 }" ]8 Y+ k' O& Z: {9 S7 ~ <statement sequence2>;3 i% y2 v. X( d! ~/ V% a6 ?% O
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else/ @ _4 s( |1 S( S' w
<statement sequence3>;
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2循环语句/ `2 N: d. u4 I; P
(1) from <statement sequence1>' W: l$ Z# p2 c7 o
until <condition> loop2 i U6 F. {1 ?9 ^, q6 {" D) y
<statement sequence2>;% {) p' @0 V" o3 d1 V" ]
end;
1 H/ I7 q6 c+ t* p- U" l (2) while <condition> loop
- U/ Y# B; D+ w* b5 P. I9 | <statement sequence1>;# c- B6 L9 g- Q E
end;
& _( L. Y1 r j$ @ (3) repeat , [9 }% Y) |5 q1 i! j* L. S
<statement sequence1>;! L4 K/ H$ B( S: l8 C
until <condition>;
* q; E+ X" _) S% F3 T) p! P (4) for <condition> to <condition> loop
+ J: I' {3 l5 t8 `$ M" V$ ~ <statement sequence1>;' N3 T/ {7 D7 j( g5 d
next;
0 ]. R. I' T3 U2 l! H2 C# F3中断语句& l* A0 a3 x/ J4 M
waituntil <condition> prio <integer expression>;
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以上为常用的函数！6 I6 c1 q4 ]# e/ R1 V& j
还有很多，如有需要我把资料发到你邮箱里 8 {2 ]& M- @8 _
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