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发表于 2012-11-13 08:48:12
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1判断语句- d% M/ j* r1 `; [- x- `1 s' o6 }
if <condition> then
`0 a9 E; J# T/ J9 _ <statement sequence1>;) ]0 B0 s; y! Y, t- Q
elseif <condition> then# b5 I( a* B7 ^$ Q- w
<statement sequence2>;! Y* [& F& p# Y6 R. i
else
. E, J5 {1 y% L$ Z! I6 Q7 J! D <statement sequence3>;# Q6 E/ x- L% X$ [8 e2 n
end;
1 N' d: R' x @2 R; D3 h如果分支比较多，用：3 n, @4 [9 c8 m" L* W: r; i+ B
inspect <expression>
8 T, E) l1 V4 E2 R: @5 n- E when <constant_list> then. P" g$ I5 p& s4 p1 Q1 s( t
<statement sequence1>;. a' T8 k$ }+ B* d
when <constant_list> then2 g7 V$ D/ t* Q7 b5 U+ P
<statement sequence2>;0 J/ C5 N/ s" G$ c) p# l6 C
...
1 d6 d9 u" u& c& z* M else
! W% I9 w i1 E6 p: O3 f- h <statement sequence3>;$ p2 J' I8 ]8 q; M/ o, s) `
end;$ O3 N6 \4 }$ K0 i
7 ^8 m8 Y2 W6 U% s, D2循环语句& g& O8 d( b0 N9 m
(1) from <statement sequence1>
" l9 D9 d9 l/ U, v9 T: O# m until <condition> loop" m* N" r* I! T) n
<statement sequence2>;6 P1 W" |. S: z: \. `7 G
end;
+ ~' w* B4 H2 b+ T9 z# u/ I (2) while <condition> loop
- l, t3 s. |$ ^ <statement sequence1>;
v% {+ D. o, @- W' y end;
% t1 O8 p" ~; r7 r$ v6 T: S (3) repeat
5 o4 e4 J, ~5 }. x7 y <statement sequence1>;
& @7 |. [2 T* W* ^, ` until <condition>;
5 N* ]& @7 k, I (4) for <condition> to <condition> loop
0 s6 F1 N+ [5 I <statement sequence1>;
2 F0 L! d; P: D* j next;. m+ K- J) g7 U& R0 g
3中断语句
4 a0 u) a6 V! ?7 Y waituntil <condition> prio <integer expression>;
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5 g# o8 m& y' ]" F. T- H以上为常用的函数！
$ d) r. @; ]1 b- R. C0 f6 U/ N还有很多，如有需要我把资料发到你邮箱里 " N6 r6 l- e* {/ ~1 e8 P
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