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发表于 2012-11-13 08:48:12
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1判断语句
- K. z' O) K0 I' g, @+ T4 a if <condition> then6 w; b+ K2 F. O2 p8 R7 E
<statement sequence1>;
4 y. Q f# h1 Z elseif <condition> then9 {9 n" m$ D& c- w
<statement sequence2>;
, M0 @0 R& X) F } else
* M( b6 P; Q1 A. P8 d4 k <statement sequence3>;
/ R- s# P5 T% s5 E end;
& Y; o! ^+ S: x$ M3 \) ]如果分支比较多，用：
5 s/ M. ^7 j! }6 s inspect <expression>
+ t9 y! o0 H! B% m% ? when <constant_list> then' v) H( }+ F/ w+ C. R. Y
<statement sequence1>;
( }* v8 P9 ] G/ \ when <constant_list> then @5 V( z2 \( H6 n8 J# b0 U; }, R
<statement sequence2>;
4 _- _8 Y: M R% W ...
+ E5 L, F# ^, z& n) H) W7 P) C else
. P* w8 T, U3 H$ c <statement sequence3>;2 A! I0 X9 N3 a
end;
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# p: R& y! z% @+ `6 B% V* o# Y2循环语句* f2 _6 @. |" z0 o8 d* F0 Z) e. A
(1) from <statement sequence1>
8 c5 I; F7 w; I) C until <condition> loop
) |+ A* l- r) }- Y0 `" I% m <statement sequence2>;
8 R8 ?' a0 D# t: _ m end;
) y2 K6 Z3 l% D; M k4 |% C4 ~ (2) while <condition> loop% d3 W- G( K0 v4 B" O0 _$ U
<statement sequence1>;+ F0 B2 B7 t1 m: O# \* C8 [* D) F
end;
1 w6 O, n- B4 K7 e' F4 V" H; m9 ` (3) repeat 4 O# X0 V4 V5 J3 w8 O: m0 q
<statement sequence1>;* b3 W3 l* C6 c, u
until <condition>;( T5 V4 D7 ^7 |; ?0 e% x* O( T" Y
(4) for <condition> to <condition> loop5 O$ g" `+ o9 m V" P! a/ D
<statement sequence1>;- a3 P+ @: i- H# s# g3 |2 U6 H; F
next;: O0 K- n' W+ U
3中断语句 }4 P4 o+ _9 v7 f& G- s, ~
waituntil <condition> prio <integer expression>;
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# ~. m ?& p/ B( [2 Z/ n以上为常用的函数！; ]# Z+ a, S8 y8 E
还有很多，如有需要我把资料发到你邮箱里
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