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发表于 2012-11-13 08:48:12
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1判断语句
! z X5 H5 P* P: z if <condition> then
0 F6 f, z) c0 g# m& ] <statement sequence1>;
# ]0 o+ d& I. b elseif <condition> then
# l7 j9 C: \0 k/ r <statement sequence2>;- `8 n7 h1 d) U, |/ Q8 F/ `9 `
else
- v& b7 I5 i" i3 c9 n! n# U <statement sequence3>;- d" m$ J9 _# P# Q s5 E
end;
" M! x# a7 D8 |+ e如果分支比较多，用：
2 Z/ H1 o2 f3 u+ W; }. D/ S; g inspect <expression>, w; @8 M4 e! b# ~/ i/ R
when <constant_list> then
* @ n. R9 }- _# p$ u <statement sequence1>;4 ^% W; P& l* b9 a1 _4 D D
when <constant_list> then3 Q. o5 ~- c1 Q9 V0 ]; M
<statement sequence2>;8 g2 J0 l, h2 n. e8 w
...
8 o: H4 [4 G7 g else
! W' N: L B5 ]% F, u <statement sequence3>;
9 z& i1 C2 K) y, c- a0 ~$ gend;
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! s6 R" D3 d4 A2循环语句
9 q \4 k. H9 U (1) from <statement sequence1>
/ `- k: t8 [: u9 C; H until <condition> loop1 E) C" l5 P( u) X# F, T
<statement sequence2>;3 v, M! l4 _0 S( R3 n
end;" l- {0 d: h7 P" i* u7 _& l5 z; Z
(2) while <condition> loop
; Q' R5 |, H, P. p4 I9 _ <statement sequence1>;
6 T6 o7 f3 U) `+ o: y, K5 Q) y end;
+ w2 Z/ u4 Y! o (3) repeat % c0 z0 Z0 B8 V. I8 W N, Q
<statement sequence1>;
* x( d; y+ Z; P) S until <condition>;- Z8 z( @" d% ]
(4) for <condition> to <condition> loop4 i6 Z7 {7 @% Z1 @% s
<statement sequence1>;* A5 n. Z/ A- D+ r; k6 U
next;
# H1 s( q" c9 @+ u4 G- [6 y8 H3中断语句" a% L2 T) s5 k% [6 k1 {
waituntil <condition> prio <integer expression>;3 \2 ~' r# N0 Q# w. f
0 J2 w2 R4 L* d
3 o. [9 z- |) f3 a) D以上为常用的函数！5 O; i8 a( O# y. [8 y
还有很多，如有需要我把资料发到你邮箱里
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