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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
* Q! a3 m/ F1 p5 [3 J, z- u if <condition> then
2 o9 _. t4 F$ l6 T0 C3 u1 w4 U% h <statement sequence1>;
- d6 j. b5 h& c elseif <condition> then
7 \: S# B- r6 ^, e1 e <statement sequence2>;, k; M. L3 l X, O0 j
else O6 a, W9 y+ b+ _+ ?) Z/ v
<statement sequence3>;
3 ?. I" ]- @* } end;
, h. [0 M9 k4 `6 |+ C6 P% I. ?$ c8 U如果分支比较多，用：7 U+ r2 O9 a& L7 u
inspect <expression>6 Y/ U6 P. ?$ g- B
when <constant_list> then
1 m# O$ x& H) I" W <statement sequence1>;9 W5 @: W% ^* L/ t0 u8 z5 J* P/ K! |
when <constant_list> then: L' E$ r- y2 m4 R$ S+ w4 |6 Q, w
<statement sequence2>;
6 Q9 I0 R, k5 |) { ...6 r, Y! ~/ P) W1 e9 u% }/ I) ]
else% P7 X1 O0 ]0 [4 X8 v
<statement sequence3>;
1 ]! X9 ^* G( N; gend;7 f0 j( {4 j2 ?3 B% M! Z' F
5 ^ n2 D; Z P. @3 y: x0 @
2循环语句
3 ~! k8 P- Q' T8 G, u s9 s- T (1) from <statement sequence1>
( w5 q% A, t5 O" k; W b! L until <condition> loop! ]! B- ?) Z; ?& F9 Z$ n# _
<statement sequence2>;
% K6 I& R' Y0 Z0 a u, i end;
% `( a4 E; a$ H( V/ a( M' f/ [ (2) while <condition> loop7 F$ x$ T) |) F0 o7 h
<statement sequence1>;' D! N2 c8 A8 ?: G6 M6 ~
end;( k* E$ [# @; O0 R# b* R% ?' E
(3) repeat
6 e* U: _% v; W" c <statement sequence1>;
$ q$ Q; L- a1 }1 c6 v1 e4 } until <condition>;6 w3 g& z4 W0 x* ]
(4) for <condition> to <condition> loop8 I$ I, l" r# L6 a
<statement sequence1>;3 S, P; L$ \ i# w% Z& X. z8 N
next;
4 e& f; G% [( p. r; N( p2 |3中断语句
# A' D) G5 c) Y8 F3 o waituntil <condition> prio <integer expression>;+ k! L9 r0 ?3 k- d f. k3 {! E
0 r- _4 `6 j3 c
$ U4 \: Z A7 M, t
以上为常用的函数！
M. g% H5 R7 F# i1 D7 R$ C* H还有很多，如有需要我把资料发到你邮箱里 9 @( ~( b* g7 `4 {4 `7 B! Z
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