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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
9 z8 g% u% H E4 F Q. `+ t if <condition> then
! K- \% C2 X' ]( Y/ ^' @% O% Y <statement sequence1>;
0 ]! U8 r! z+ D( O% H( S5 R elseif <condition> then
: I& S8 C$ U! l0 m: Y7 C0 H4 q <statement sequence2>;
! Y) ` E Y9 f9 |3 g4 G8 ] else
# ?+ B5 ]" ^* E2 M3 W0 z9 Y) p <statement sequence3>; t3 x* t. }9 a1 [9 l
end;% ^9 f& W* ^# Y
如果分支比较多，用： _$ [' \$ H' i3 {! [- f
inspect <expression>9 Z0 e5 ^) S, \% ?+ X
when <constant_list> then* X/ ?; h& e1 Q/ u) `
<statement sequence1>;
3 I) e1 `% J7 r+ G) R when <constant_list> then
: ]9 ~9 i. |% ~ <statement sequence2>;5 Y1 J) @7 l, R1 G' ^* x5 F. E: d" k
...& x i" U r! P+ b9 O0 s
else3 v7 b' z* d3 D
<statement sequence3>;
- z3 ~/ F7 o8 o% ?end;' l7 g- {( L5 ^! z5 h! t
" T; N. ]$ R: J2循环语句
3 w' F, K9 b% B$ j A6 |) e- \ (1) from <statement sequence1>
% B0 x9 H( e7 B2 N6 t" K until <condition> loop
* Q* [! A' q; g$ d- T; H& | <statement sequence2>;
: \! H7 Y0 D/ @; K/ Y end;- ^( b; M8 \: `* V
(2) while <condition> loop
j* P, E$ |0 k/ o <statement sequence1>;/ @; J& ]+ G$ E4 }2 R
end;
* c5 i$ ^1 F! h# k (3) repeat . V v. o6 T3 U7 ?
<statement sequence1>;: _& {; `: Q4 k0 K+ k
until <condition>;
/ Q1 e3 D* a5 F7 }' }! s; b (4) for <condition> to <condition> loop
. \9 w0 S2 U+ F0 |. Y" \) E <statement sequence1>;2 P1 x; ]: f f/ K ~1 o' r" J
next;5 L1 ~6 j* L, Q
3中断语句
& T6 g( @, f: M5 t/ B waituntil <condition> prio <integer expression>;
7 H3 E% L* S3 `4 `( O, e7 m, T% H; l
. }, P* k$ D9 ~" D5 t以上为常用的函数！/ F% j7 u% }( F% R! l
还有很多，如有需要我把资料发到你邮箱里 0 \# r6 T, M3 t
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