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发表于 2012-11-13 08:48:12
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1判断语句0 [ A' G. Y' i. }$ p9 j2 `
if <condition> then5 a- z7 ]+ g$ s0 e" S) A% s
<statement sequence1>;
" \5 |3 Q7 ]3 B! [- l elseif <condition> then
! K3 B- g. I- ~4 T <statement sequence2>;
' j: m4 R* ?9 k) J else ; |( L2 B! _6 ~% ?2 V- i( w
<statement sequence3>;
: W! B5 ^8 N) F0 [- e5 M end;: M% k. O9 D( O) I, }
如果分支比较多，用：
: q6 v( Q* S, k/ B h5 ] inspect <expression>
4 ^4 V# g3 q, y1 v$ {& i when <constant_list> then3 A2 M. t0 f8 W+ `
<statement sequence1>;' W* c }) n8 y* ~, C
when <constant_list> then$ H& i/ C# B0 l
<statement sequence2>;
! E# l( X. w% I' N( Q# I6 A ...
4 H, Q' V3 ?+ x1 |6 a" R- R, y" B else- S* ^/ H5 g. ]1 Z* |- R5 ]
<statement sequence3>;
* _, W" K; B _* t* Uend;
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2循环语句2 C- N% V* g7 T
(1) from <statement sequence1>
" {, `. ]% X0 o# t1 h until <condition> loop
- h3 o0 \& |4 t+ q; x0 { <statement sequence2>;2 S1 O2 U. @0 {* G8 n' h2 ~
end;
5 t+ g. Q3 ~% D5 V# ^) P1 `; v (2) while <condition> loop7 ?: J/ b1 b& d' q$ {5 U8 w7 D1 s7 G
<statement sequence1>;
+ _/ Y4 Z ?% y3 h end;
4 P- N8 ]" [/ T( J* u! m% ^ {( ` (3) repeat 2 p/ s+ D$ R+ ^/ f4 p
<statement sequence1>;
0 Q! G4 U$ R& c6 b8 Z until <condition>;
7 H% Q9 |7 b" D$ f" Y( z (4) for <condition> to <condition> loop
9 m8 R1 e( D E+ w$ m9 x) f( l2 x) d <statement sequence1>;
+ V: C y$ Q- U; C next;
. H3 w8 C$ j4 A6 W3中断语句
8 V0 E7 F9 C ]: K. e8 J: q8 {' X waituntil <condition> prio <integer expression>;9 o( r" S. `. M8 M5 E
: s) i4 B9 d! d5 q
& Y' M7 `6 m( h% s/ G( ^以上为常用的函数！
# s. E& K. z, ?; ?( b5 g还有很多，如有需要我把资料发到你邮箱里
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