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发表于 2012-11-13 08:48:12
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1判断语句
9 E; x$ F) [/ E if <condition> then5 P: X6 M: T S5 V5 C3 H
<statement sequence1>;. [9 l- H! ^2 h
elseif <condition> then
3 ]+ y! }$ A8 ?+ l1 T W <statement sequence2>;! z t) Q; L$ m2 T* m: P
else , h3 ]$ [- g' s0 v) j4 R+ q
<statement sequence3>;. W0 \; d1 |4 n! }/ x* M
end;
$ ?8 x* n! b4 l# ^" m. L% F如果分支比较多，用：
- A, t8 _1 p+ y4 J inspect <expression>
$ c- R( N" X5 y |, M when <constant_list> then
u; b4 x; X( N) f <statement sequence1>;
5 v$ y6 C" @" O3 f when <constant_list> then
" r4 I' H# ?, A- Z5 m <statement sequence2>;
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else! I/ P" k Y7 ]. W* j& ]2 L
<statement sequence3>;
$ T+ T; U% G' [/ }- |) aend;
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5 X3 m0 R; t; z# O) R1 R2循环语句
8 J6 g d! p* N6 @" z (1) from <statement sequence1>: c, N% N o, t h; E7 W
until <condition> loop
. A2 o. w R9 x3 g <statement sequence2>;+ b4 s# S& \( F1 n7 l
end;1 N+ o& {7 v# K+ |# C$ p
(2) while <condition> loop
6 w5 [9 V" @ I) A <statement sequence1>;
5 {# _7 ?7 H- x0 a4 w end; E- K. D+ b) W- {. i
(3) repeat
6 x8 ]: a1 S. J! m4 E <statement sequence1>;
$ I7 j: j0 B" |+ _ until <condition>;3 R& u( Q: _: Q: W' S4 X
(4) for <condition> to <condition> loop8 u6 Q Y* S4 ^. H. e
<statement sequence1>;
- }% F d7 ~! F6 E! |4 K next;4 K% Y8 E& N: ^+ l
3中断语句 G7 ~- }. Y1 j4 a8 L0 V& m
waituntil <condition> prio <integer expression>;' T' V z' W% s$ n9 ^
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以上为常用的函数！
* F; B$ C% _' F7 Q4 N还有很多，如有需要我把资料发到你邮箱里 * Q; v1 Y$ O* x2 r0 [* m: C0 S
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