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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
v% h: {8 A; m0 H9 k if <condition> then' D" P ^$ e7 L
<statement sequence1>;
+ i9 N/ Q: K+ o3 b/ H+ U8 o: c elseif <condition> then# N/ @2 G3 [) g( Q5 I
<statement sequence2>;
' W7 z) V" x$ D else
, T6 s. t# J. ^' n+ _; ~$ | <statement sequence3>;7 p0 S; m j- q9 Z, M: i+ a
end;/ T' z8 H3 D# G) Z4 j; m# B
如果分支比较多，用：
" g- ~/ b9 Y6 v" }( Q inspect <expression>& P P2 `, Q, x" u7 E
when <constant_list> then& c; L& w6 h& |: [$ o+ o5 h2 R% z
<statement sequence1>;' o- O3 I( N, _5 `8 c$ f& k/ S
when <constant_list> then
4 D9 N1 j$ \9 W5 O <statement sequence2>;
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else
+ \$ b$ h' G+ c! r# u( O# Y <statement sequence3>;
7 e8 e9 w8 J1 Xend;
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$ K0 I4 ?8 g( X) T8 d2循环语句* g- P9 r$ I4 O# r
(1) from <statement sequence1>5 Z* P/ n3 ^ r2 i# U }# J0 h
until <condition> loop4 ?+ T) @! d% j3 \1 ~' { I
<statement sequence2>;' H) V) T" z/ z
end;
6 \: o( |4 e% t3 y (2) while <condition> loop
+ b; M D( a. g8 v, t4 W+ q <statement sequence1>;
" z0 K2 K+ q2 f2 e! w5 p: L end;' P5 J: m1 J) m- v3 p
(3) repeat 5 `5 L0 O) `; Y% G. }' M ~
<statement sequence1>;# r) b- Q# M3 _+ ^' ^, L
until <condition>;
! K0 R5 {1 O2 V9 o! e# d (4) for <condition> to <condition> loop
& q, p$ E& C o- B$ s <statement sequence1>; k# b( j: S0 M4 F) S+ G
next;+ ^0 K( q V# Y/ B1 y1 a9 ^- M% N
3中断语句
8 j' @6 l, E5 O0 S waituntil <condition> prio <integer expression>;
/ A+ y7 {. @0 {: }7 i3 @9 e* l
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以上为常用的函数！
5 C2 x0 Q8 V" `1 M% i+ F6 c2 g& h还有很多，如有需要我把资料发到你邮箱里 7 w ^2 O. f: n
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