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发表于 2012-11-13 08:48:12
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1判断语句1 _, j1 U8 Q7 _/ C8 @
if <condition> then; B" o/ o9 A+ D0 p+ o7 m; M, n
<statement sequence1>;
4 f4 y1 `, i9 B6 {& i& f elseif <condition> then
7 S" y, Z* q+ }! s: N# h <statement sequence2>;1 x" }0 I) B1 K6 N2 d
else
0 i' p# l5 B" O/ `7 k0 b <statement sequence3>;
8 C7 Q: z1 `' ^3 { end;
' m0 ^ }$ p( r% r4 U; P3 B' p8 n" z如果分支比较多，用：# W4 k8 E0 A3 i5 I! ^& f
inspect <expression>' D& B, Z: r1 f5 n
when <constant_list> then
i- t. x; b' d) o* d5 Z6 k9 r4 B <statement sequence1>;) _, c4 K6 u/ v, F& S1 Q
when <constant_list> then; z3 b; e; Q# g& x0 q
<statement sequence2>;
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else
0 a8 l7 Z; Y1 }; _ <statement sequence3>;
4 V1 t4 @4 @7 o7 Aend;
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2循环语句
4 y( @; T0 g* K+ X& h" t! S (1) from <statement sequence1>0 V5 B3 Y. X8 R% @" V c/ p
until <condition> loop
+ ^3 \, O2 c3 [ <statement sequence2>; N* D6 c0 Z" [" I0 }- |
end;
& T( \; ]7 i: W) l5 X+ \9 g _ (2) while <condition> loop
4 f; J5 z" f: D3 o$ @6 ] <statement sequence1>;
8 r; O, d% h. V, y end;
- y; P2 s7 k* ]$ Q (3) repeat
( M# }6 e. ?0 g. P$ O1 | <statement sequence1>;1 d3 K) H6 R d- Z5 ?) d3 E4 v
until <condition>;
- T" Y' D( b4 I! V2 h. C (4) for <condition> to <condition> loop0 P( u. D3 b, }) ^* _7 _
<statement sequence1>;
0 A8 Q# a- V- {+ ]+ ?/ } next;
# w" B6 J# e# C4 t5 a4 `$ P3中断语句0 I |* c* q# r! L, Q: P
waituntil <condition> prio <integer expression>;/ |, @0 m4 e7 M% P
! ?9 \ z3 S6 b2 ]+ [2 I! i- D
* g9 `1 W# C5 K以上为常用的函数！
. n8 k$ u, k) k5 k5 ~还有很多，如有需要我把资料发到你邮箱里 ( b3 c. U' W" `7 i7 ^
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