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发表于 2012-11-13 08:48:12
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1判断语句
, _ F z/ r; Q if <condition> then
+ h% p$ M0 _% t <statement sequence1>;9 P! V3 Y0 W! N% Y3 p
elseif <condition> then
; e: _* K2 K- m* g+ f4 |+ p5 E <statement sequence2>;
% c7 p k; V/ r# Z% N# U1 f& n else
! l& T( a. x+ j <statement sequence3>;
" c7 d6 z' c. U; ~) o end;* M1 @$ C2 `0 c# f( Z4 t9 j$ l
如果分支比较多，用：
7 y# z" g h2 E" i/ c inspect <expression>
+ J3 m6 Z7 k% l( B; ^% Y0 J when <constant_list> then
: M; M* m7 j- i, R; K2 a <statement sequence1>;- D8 m4 p: o3 D+ j2 Q$ `
when <constant_list> then5 I( R( N5 e) i. W( i# u- e) r! N
<statement sequence2>;
4 J. ]- o! H4 v0 G3 ?+ K ...
- O8 ^# P- K, L# \ M* U; l( B! c else
! U: T' T6 H9 y. c6 C <statement sequence3>;* h' q; V* Z' F; B, |
end;# J- K6 p. U! u; g
5 X& i( m( @3 A2循环语句5 h0 M: Y* ` R: |
(1) from <statement sequence1>6 H7 u- v) ?+ f* U: v, Q
until <condition> loop
% E& U7 U+ m( c, y6 E. @. l% x <statement sequence2>;
$ D3 q( i9 m) `( } end;
" }5 W$ }4 [: J7 w% Q# ~ A" P (2) while <condition> loop
. B3 k" C+ R% l: a <statement sequence1>;
1 n l) X* n8 u5 u7 a1 i end;# G5 Y! _3 a" f' p
(3) repeat % @: T @! C o2 G/ [+ q: Z
<statement sequence1>;
! Q5 a+ h% }6 I! p! C until <condition>;
* W1 D6 X6 V2 _& r (4) for <condition> to <condition> loop
- r& h4 j' H. ^" U) F <statement sequence1>;$ {4 o2 H, a0 g5 J" a3 \) ?0 D
next;
: B; M" Y5 V8 y3中断语句
2 O7 ^& p, b) \9 ]8 b waituntil <condition> prio <integer expression>;
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5 p0 R) V% d. \3 q' m$ \) x$ K* ~' o$ s" \ x, N7 ^5 `5 V
以上为常用的函数！, I. p. {2 G) W7 o4 a9 ^( I
还有很多，如有需要我把资料发到你邮箱里
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