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发表于 2012-11-13 08:48:12
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1判断语句& s/ R6 W8 d D
if <condition> then
2 P. L* E- S- h' g5 { <statement sequence1>;
) s ]! _7 Y+ O. A l/ n elseif <condition> then4 f' I- b. K; y- n
<statement sequence2>;
9 z9 y. `0 |6 V+ n3 e else
$ L! X/ ^: S7 Y3 ~" v <statement sequence3>;
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如果分支比较多，用： K0 u2 P h+ P* n
inspect <expression>) _9 j$ K# b8 q) G
when <constant_list> then
6 V, P! q; w& q3 z0 p <statement sequence1>;$ Q7 Y/ B3 P5 k6 |
when <constant_list> then
& _" U) k$ k6 d+ n <statement sequence2>;8 A- P1 \: T' ?' o% T' X' [
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else
% B4 t% w E& C <statement sequence3>;$ V! n8 L( K7 o, E5 E- Y
end;
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9 x/ V% C% w- n& M2循环语句 B3 a* Y: u! o
(1) from <statement sequence1>
0 g( M1 w4 S, X9 ^2 M8 g0 F' k until <condition> loop5 a' d+ ?) e+ J
<statement sequence2>;
- G' p' P; N6 `' v" B end;
+ l9 z! A3 I6 ]0 B& h& c6 Q1 a (2) while <condition> loop
+ e/ s$ D5 ~+ ^0 m5 | <statement sequence1>;
6 j6 @% ?) a) e4 F; w' H end;- ]3 R0 W' u9 s! ]5 m' n6 y- `
(3) repeat 9 \- v! {9 Q0 {1 S2 Q; ?: ~
<statement sequence1>;
( R% {9 R: L, D# w' |8 m B until <condition>;4 |& Y# B$ g5 q; P
(4) for <condition> to <condition> loop d) E3 V6 l9 z% u3 F8 l8 V5 R) c
<statement sequence1>;" e8 L) H5 x$ F0 S3 w. q! T' J
next;
7 t" Y) ~+ f- |+ d3中断语句5 o& C+ s5 K% X D& |
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
1 W) G1 ?0 Q+ ^( c8 _% m还有很多，如有需要我把资料发到你邮箱里 / ]% {; {* d7 Y; N. u
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