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发表于 2012-11-13 08:48:12
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1判断语句# t% Q! L% \$ E; ~4 A
if <condition> then& Y0 }7 X* _6 \8 J4 `8 Y& j' X
<statement sequence1>;! P- X7 ]# R6 @; E6 a
elseif <condition> then9 O. E# A! D, z" Q+ a' ?
<statement sequence2>;& z2 T: I* X* F' O
else . Y! h9 {2 f4 m1 i" X
<statement sequence3>;8 r# K0 S. W# f- G, M; S- t
end;
& ]% P+ U( J1 P6 o6 s v# e如果分支比较多，用：
: y* S2 F3 v2 W% v0 N inspect <expression>" j1 \% z2 d5 u
when <constant_list> then
Y# @4 J0 b, \& a s! x% U$ K <statement sequence1>;
; R Q9 W( Q7 Y! ]0 y: z; B& H2 v when <constant_list> then0 I; `& m. d. }! o% p5 A6 k# S4 f
<statement sequence2>;" M2 c; ]5 e# k/ b. U, l
...
2 b3 `4 O+ b- N; v( q& e else
5 T$ X S) h/ [4 K0 w3 `' ^ <statement sequence3>;
2 u- L! e1 ?! kend;* V9 |: u9 X( h2 ?/ ]
1 N T6 k- G4 l$ f) d% I6 J% \4 ^2循环语句
. q9 q1 [8 t( k (1) from <statement sequence1>6 d, d# {7 j7 z7 p9 X- r
until <condition> loop
; B1 x5 }7 H( M8 U' [* S1 }3 B <statement sequence2>;
% u+ f5 N" z7 U0 b end;
8 P s0 F& q" K. _ (2) while <condition> loop8 A: @2 L4 C4 i' p9 p# m) D
<statement sequence1>;" F, h$ f; m! d! E3 M+ T5 Y
end;
& a3 N4 ~1 a [" A7 D+ i$ B. p, D (3) repeat % J' B& A) Y( H' S8 @% E! n, [
<statement sequence1>;1 B0 w, W5 u: Q) V& [( l
until <condition>;
8 F, M9 u) J) ~% G3 d2 f (4) for <condition> to <condition> loop
3 `' _' m: D3 S1 Z: N% e2 Y/ Z <statement sequence1>;
1 V; Z+ ] l' e9 B: E next;
; r& l, ~; D5 M8 q$ t1 \# k2 w3中断语句
0 n8 S2 H3 f6 }5 D. H# }* g waituntil <condition> prio <integer expression>;1 d1 Q8 C" [1 r$ P
8 I& l1 U1 ]0 d4 g% A. m% u/ ~' O& b- x
以上为常用的函数！
. x$ l; N$ u$ d0 B& L还有很多，如有需要我把资料发到你邮箱里 * p& p. Q! s6 s/ r
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