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发表于 2012-11-13 08:48:12
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1判断语句
; {' P( `/ X5 n3 R1 }- B- G& p4 w if <condition> then
6 G/ E/ H6 N2 [! ^( O! `( z w <statement sequence1>;
& p1 z6 X7 v; ]2 ^ elseif <condition> then
f7 W" K5 v8 R5 L <statement sequence2>;
* ~1 @; {) Q3 b) F* s3 z. h else ! w3 a- S* f; _
<statement sequence3>;
$ N5 m" E5 K# O end;: \ \' N) Q% R
如果分支比较多，用：
R) u% R" Z8 j9 n/ H9 l inspect <expression>
- C4 m+ d; M6 F7 A when <constant_list> then
( q8 [8 |" H; L: B/ R <statement sequence1>;
* |8 W8 g7 D+ ]7 B9 y- [' l when <constant_list> then
) \% L( s; T/ r" o8 ~1 c+ B <statement sequence2>;
, ?( L7 K u$ N( E( t& ?+ o, N ...
0 E+ U# q+ X; X4 ]9 r& X else
$ n* O* j; U3 ] <statement sequence3>;1 L; t+ D7 k6 ^! y5 N! h N
end;$ Z$ V z$ S) }/ i; V; C) L2 l
- b5 A$ t1 [5 S. q! D3 ]2循环语句
) Q+ I% D: m8 x: p3 `) ]8 l6 U. v (1) from <statement sequence1>
! e9 P5 F X5 c$ k9 K2 u until <condition> loop" A+ l6 i* W6 ^ W/ Z
<statement sequence2>;
" i5 r' j+ [4 C* O1 m) Z end;
( c! N3 l$ t, Y; h. s' t: W (2) while <condition> loop2 j6 i$ S& P3 p! ?/ {
<statement sequence1>;$ @( n% z3 V9 E: N! T
end;
/ L7 |9 n0 y7 Z ^8 _ (3) repeat
6 V+ |' n& U4 O <statement sequence1>;/ I3 m6 `1 Z5 d( N9 `0 n3 j- I
until <condition>;6 e3 W$ Q7 t) Q. Q& f
(4) for <condition> to <condition> loop
/ a6 j9 Q2 ` ~) ^4 F5 f <statement sequence1>;+ I0 \: C# e* R* V/ j1 D
next;' m' z/ v$ ^% Q. S1 z5 D3 a5 u- I
3中断语句
; `8 M) t- b# G6 s- h" S, Z5 x/ W/ ]7 J waituntil <condition> prio <integer expression>;4 w, G, ]* v Y# ]2 H2 u a
1 \0 @2 a3 ?6 m
- T" `! h, y7 C5 ?
以上为常用的函数！( Q4 c+ C3 N4 q$ R- o
还有很多，如有需要我把资料发到你邮箱里
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