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发表于 2012-11-13 08:48:12
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1判断语句! y. Y! p8 I5 @' F4 u
if <condition> then
8 H" Q, } h+ j+ B& P# r <statement sequence1>;. T+ c: T1 h+ j: c: ?
elseif <condition> then
/ q" x* ^2 @6 {( I9 G0 ?6 Y8 S- x) E <statement sequence2>;
. j2 c/ C7 t3 Y* @5 _) V+ p else , U5 x+ M& h3 `9 ^3 z9 I$ Q7 u
<statement sequence3>;
, ~( O1 k0 M: I4 a/ `" `0 M: ~ end;
5 O3 e# s [, j2 r9 i如果分支比较多，用：# Z9 {5 M M% e4 O0 z4 r m" [
inspect <expression>' s9 q* N8 k" m+ Y
when <constant_list> then- Q: ^6 x1 W) ]7 r: ]) ^
<statement sequence1>;3 d' N M/ t; c" I m5 y: z
when <constant_list> then
- W+ [, ?( q$ b5 P2 e1 t, H0 c1 r7 y <statement sequence2>; a/ h( a4 _2 L. u: s
...
; Z R: {5 U2 f% ]1 B else
/ g& ?5 j: t! e! ~ <statement sequence3>;3 @1 ~- [2 q$ M4 X2 f/ f# Q, a. [/ ^
end;
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8 `2 Y3 _5 ]1 k j* ?, U2循环语句
G; {7 \3 D2 j7 [2 T7 \ (1) from <statement sequence1>5 |/ D# t0 k/ f0 j V; v1 N1 j x
until <condition> loop0 q/ S# ~4 D# L/ G) J+ O
<statement sequence2>;$ c: _' ]5 y4 \0 J2 X# c2 B* q3 Y
end;
; d1 \2 B, e4 q8 v9 M0 h (2) while <condition> loop; }6 c7 v+ T3 @9 v0 l$ B
<statement sequence1>;* `7 G" [' ^4 b0 a" y N9 ~- S" f
end;$ Z, z1 @, T9 R# A; D" U( P
(3) repeat 1 F% I( c. D& _" a) ^- _( `( p
<statement sequence1>;
7 H/ z( I0 ?( s+ z }7 T until <condition>;
; B; U: _: q) H) b4 \. b (4) for <condition> to <condition> loop
& K' B' T; I* b6 K <statement sequence1>;
0 B3 | m4 P; L8 A* w) c next;
$ `# |, Y8 K$ v6 j8 }/ n3中断语句3 v* Q0 y6 J* @4 s, p
waituntil <condition> prio <integer expression>;) K( R6 e# q; t4 Y
% l' [1 D* ?' r& p7 b# ]4 i; w* j0 g# H
以上为常用的函数！
1 S: v- Y! ?" ?7 R) x! [* w, O还有很多，如有需要我把资料发到你邮箱里
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