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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句+ s; u, \$ g1 z- {4 }3 V# v/ \# z1 Q
if <condition> then
& k- G; d/ P7 t <statement sequence1>;( k9 X) \6 U% D R }: ^
elseif <condition> then
/ E$ l3 Q4 l2 g% Z6 x; \ <statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：# f2 Z- }( J6 `. A$ p9 X' M, \
inspect <expression>
, B; g/ c% G; X- I$ v+ m2 V, Y: [ when <constant_list> then( Q" c! W) V9 D# T9 D/ z% k
<statement sequence1>;2 V8 L9 k! H1 W/ R$ e
when <constant_list> then& N8 R& x% P4 p; L. |
<statement sequence2>;( B( L: |0 ~7 h) q! m2 s
.... `, _0 B8 ?; K5 ]) `$ B
else# W' E' o2 `8 W* e
<statement sequence3>;
# O8 k1 K& k: b+ S2 e% {end;! X, A" t& S9 v9 s
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2循环语句
0 k, Z- B5 _% F (1) from <statement sequence1>$ `4 W" `) D1 O3 ]; B5 @& L
until <condition> loop. B0 n6 b8 z8 x8 a2 d$ h6 D
<statement sequence2>;
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(2) while <condition> loop. p2 T+ h. M# J# x/ D ~+ Y
<statement sequence1>;4 |8 r( W3 w) Y, y+ w9 y3 C
end;' [0 A1 c$ c) H9 B
(3) repeat
! S4 ]: L/ N4 Z* p0 P$ [ <statement sequence1>;5 `7 | `( S$ E- \" u
until <condition>;
, L. d# o) c2 t# C' B (4) for <condition> to <condition> loop
4 Y8 m% M; T v4 J2 H0 F* |* U <statement sequence1>;
7 I: O( f- Y; d6 z next;# M; d W b0 y0 g4 x$ T9 u
3中断语句
8 q$ x: F( i) R5 C7 E- n waituntil <condition> prio <integer expression>;
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3 o; p* f1 e r. B以上为常用的函数！
3 C- g+ }0 }3 q' S5 \- B还有很多，如有需要我把资料发到你邮箱里 $ B, R' Z G& z+ p9 ^! t7 e
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