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发表于 2012-11-13 08:48:12
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1判断语句' y! x, E- F8 _' O$ O
if <condition> then7 M; w/ R# n, p' E) C7 j
<statement sequence1>;2 j1 R2 R9 P4 S$ B! j1 W6 u: _/ f
elseif <condition> then
8 S6 t. g8 c5 _' X, J% U; `9 n <statement sequence2>;- [# I% n0 u! K' n4 a" i8 E. g
else 9 t0 g% g0 ~+ I
<statement sequence3>;
$ g- n$ d8 P( _9 l; {, g+ { end;$ Z# c: ^* G" B+ I9 C4 N# }
如果分支比较多，用：. X: Q9 c$ N8 p/ D. m0 n8 f7 X
inspect <expression>
1 L% x P# B( Q7 W when <constant_list> then5 C5 b( [2 n. ]9 I- E) _! Q
<statement sequence1>;6 B: Q% ] n8 I+ j; w$ N" H
when <constant_list> then1 M7 q+ p( [0 C3 Z) h6 u% B* [
<statement sequence2>;3 R* i0 r" C# v Y
...! U- [$ p2 _+ T) e( x8 a! a2 v
else* `- w( u# w3 J6 ?& C8 |
<statement sequence3>;
3 X3 l8 `0 B* c4 r, a; ~: wend;$ g+ U- i7 n2 ]' L4 n% i. N2 h: m
' O, K2 z% c2 Y& p2循环语句
0 y: s4 _. f! F5 ^2 L5 _7 n (1) from <statement sequence1>
3 R' e p6 a' L7 P until <condition> loop* G9 e! K$ d3 H3 H0 H$ Z% ?
<statement sequence2>;" Q& X7 O0 r0 f$ [9 A Y9 Z4 V3 y
end;7 s! M3 i5 }) l" t+ t
(2) while <condition> loop
9 `6 Z$ r4 U3 e' i <statement sequence1>;
' E* ]' J* R- ]0 w+ ^6 g end;
( Y+ X" |( c; {3 F9 T9 g (3) repeat
2 f e1 w) H$ \0 v9 C+ v <statement sequence1>; f. U) M& l8 X3 O' n+ H
until <condition>;
" I6 N! g% f# Q% x/ [* k5 U (4) for <condition> to <condition> loop% n0 I! X: r, [. ~) F, M/ O! e
<statement sequence1>;: V6 L; R4 ]- S. ~$ o: ]
next;2 l) ~& L" s% Y- S0 C j
3中断语句
/ J% Z- g$ M6 u. S0 J% r7 R waituntil <condition> prio <integer expression>;- a7 o; D( ^; z5 D) ]+ Q$ F
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以上为常用的函数！5 p: ?1 g! s9 ~% ~7 a. C2 M
还有很多，如有需要我把资料发到你邮箱里
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