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发表于 2012-11-13 08:48:12
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1判断语句% O1 ~7 Y4 z$ i7 N! }
if <condition> then; J9 }9 b0 ]: L/ @9 O8 e+ m6 E
<statement sequence1>;
5 n/ P- V2 c+ Y y2 b6 T( Q$ B: Y elseif <condition> then' U% L8 }/ x: a/ J/ |! q$ F: [: ^
<statement sequence2>;
& q) y" t' g/ G else
7 M1 e+ [ J; v m$ x <statement sequence3>;
7 y$ o [6 T8 y+ q; ]. _ end;. O- B" D- \7 p$ ~- D
如果分支比较多，用：; o' v7 b r# }8 C8 O& d
inspect <expression>
K/ @. K: {' \& Z5 a when <constant_list> then
# u6 `) S3 G7 E2 x <statement sequence1>;
0 h; O9 l7 L) p D5 W, Z! n, G when <constant_list> then
. y ^2 | d, b+ f+ |4 N <statement sequence2>;2 x; j8 k2 [6 L9 k
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else
3 J4 D/ G, ], T% i; q) U <statement sequence3>;
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2循环语句
- z/ S% O5 |8 D0 W* { (1) from <statement sequence1>" z* U6 S8 d8 h' d ?
until <condition> loop
# f# |' I$ t1 P0 [ <statement sequence2>;6 o) T0 v. q7 b- `! X
end;2 t }$ S, g+ }7 [1 b" _
(2) while <condition> loop0 i/ G T# I' a
<statement sequence1>;
6 o+ ?. r( b' |" B" } end;- X4 U4 ^# x' }, g. r: _" `8 W7 `
(3) repeat 6 n* c* Y* P, Q
<statement sequence1>;
3 u2 J+ I K1 w, a# l until <condition>;
, U, l# W- F3 q3 N (4) for <condition> to <condition> loop
$ }, b1 V ^8 a+ g <statement sequence1>;9 j, [" s# n# f& Y( N9 g$ w* G
next;# l* [7 t9 `% K
3中断语句
Q a$ T% A4 J( ^$ ` waituntil <condition> prio <integer expression>;
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0 {; x9 D; [) ^5 B以上为常用的函数！
' ]: P" ]* F" _) r$ b还有很多，如有需要我把资料发到你邮箱里 ! P0 h& ]; o- M' P, H% @3 C) Z
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