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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
- O* s0 G: |) f$ m' Z! f if <condition> then
/ T/ w3 ~4 p3 N+ J5 S0 g <statement sequence1>;
2 w d- T! m8 @, C5 e5 w elseif <condition> then
2 h! K5 a- ^! \5 H) ^8 `0 z <statement sequence2>;
) e) f) \7 V, J4 F else
( q4 t3 g% w3 j <statement sequence3>;
$ D1 i0 z8 Z3 e end;# r, q! @: A) E8 L
如果分支比较多，用：
- l. i- h/ O' U$ M6 w0 b+ V inspect <expression>
% w7 |& y3 g; `8 s* ]+ b when <constant_list> then
9 n# N" T* k! S/ X5 Z Z <statement sequence1>;
3 C9 B' w, t. k when <constant_list> then
/ F+ L- e- h! T% h$ h8 t8 ] <statement sequence2>;% Y4 C7 r2 g H4 j0 B2 \$ O
...3 y$ c0 j3 A' Z* R& a- T' Y
else4 z5 d. C/ }6 h0 B* J8 P4 V
<statement sequence3>;
4 g7 D* n9 Z0 l# U; G% X1 r2 eend;
5 ~ E6 M5 o" F( m% H; i9 n" ^+ A' B! x, W6 Q+ b
2循环语句
) s O: K+ Z+ s, x2 a' {, W (1) from <statement sequence1> V+ n3 f! x: [3 Z" \ V9 B* S
until <condition> loop
' y7 x! `/ b! V3 @ <statement sequence2>;
3 _4 K, U. C0 m& ~+ v$ q# q end;! n! y! o$ V4 ~+ u; J
(2) while <condition> loop
2 Y" a2 L$ n3 @. m <statement sequence1>;
, ]! w5 A( O O: N( x end;# n1 J- [" f1 T- Z
(3) repeat ( o+ ^7 P# I! Z/ L) g, P
<statement sequence1>;0 s: J2 ~$ ~) ~7 _5 w' s
until <condition>;
. H6 T4 v/ B- v9 X! j (4) for <condition> to <condition> loop0 U; R7 J% }3 [/ C" b. ]7 Z
<statement sequence1>;
4 z( G) e" {( p3 x7 R next;# V, v! O0 u8 F+ O
3中断语句3 [8 ]& \* H. y) L& o
waituntil <condition> prio <integer expression>;' o9 D+ H2 V7 `, ?& H! i( b+ G
- l- V+ }7 ?* p
+ f0 T8 o/ a0 u4 r$ J以上为常用的函数！8 I8 c4 e( _3 D2 {! y+ L
还有很多，如有需要我把资料发到你邮箱里
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