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发表于 2012-11-13 08:48:12
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1判断语句
6 t# F6 Z* P. D0 @3 } if <condition> then5 F1 y3 l9 I' y# B. X
<statement sequence1>;
0 n) b: i* J% i* `# K3 S) ?! O elseif <condition> then9 H8 s4 b0 ]* V! p! R
<statement sequence2>;
0 i$ ` g9 v7 K8 U" H else
5 h) {5 n2 Z; E1 D1 Y <statement sequence3>;
# W6 ?' Y+ p: Y1 r) z* O/ w end;
1 H9 d; o( _. x# ]2 \. x6 W8 U如果分支比较多，用：! j9 D. P J0 I5 B3 g
inspect <expression>
# \( p# ?5 C! W: |3 F when <constant_list> then9 I& _/ V8 Q2 ~
<statement sequence1>;2 |' }6 l" m+ p. |3 H2 ^
when <constant_list> then3 c, p1 D! B9 h7 x# ?3 k9 k
<statement sequence2>;
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else
- T' w: x+ ]6 D0 a4 n3 |& L; A <statement sequence3>;
: V: }9 B7 H) v# F, N* J1 eend;
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2循环语句/ `5 x; a3 q2 J! L% G" @! c. X
(1) from <statement sequence1>- H5 \; v5 m2 s! x% k1 E
until <condition> loop
/ X0 T- D7 j5 r7 |4 C3 s <statement sequence2>;/ W2 q$ l2 D1 v$ x% s/ O
end;7 u, H( ~9 f$ k: E8 e) n* ~* r
(2) while <condition> loop
6 E2 L% X) W' \* u$ g, L3 G9 ~ @2 y0 ^ <statement sequence1>;
" @8 L2 @- [. P- k/ Q end;
# i: r- O8 `0 F5 d; [8 Q' v (3) repeat
/ Q+ Y) S4 n. P! y# `2 B) j1 B# p <statement sequence1>;
; O. R0 m$ ]+ H) R" P until <condition>;
$ ]/ D) S: D% ?7 @8 }5 K' y4 c% E (4) for <condition> to <condition> loop
& T' U/ x9 F' E <statement sequence1>;
* @0 ^; n( k; d8 P9 O next;- |& P# V/ Z- Y. [
3中断语句
3 N1 v- u$ e4 J; k) J# W5 T waituntil <condition> prio <integer expression>;- }1 S; S* [2 k
) }% d. g' W* N8 h/ m5 Z: h( ^6 `) b* e% j0 g8 U2 J2 }
以上为常用的函数！
8 j) q2 c m% J% U1 B" F还有很多，如有需要我把资料发到你邮箱里 - ^' W. ]7 d h2 y1 P# {# s
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