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发表于 2012-11-13 08:48:12
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1判断语句) T! k1 G* L9 B/ O! O& D
if <condition> then5 W/ z1 }, n' h
<statement sequence1>;
+ i) j9 S" L7 ]; J/ V9 T elseif <condition> then
" r6 c- @; q/ ?1 s* F O' D <statement sequence2>;
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<statement sequence3>;
$ a4 X0 _. e1 s W4 r; ?7 s end;
# B, K4 f6 C" I$ h4 l9 o如果分支比较多，用：7 \3 N; ?" F; d: _: g
inspect <expression>
' Q+ C& U2 `+ U, K4 O8 i when <constant_list> then% W( l7 r; R2 G( t7 d3 T6 d: T2 |
<statement sequence1>;& U: F( e! B+ i( V2 ~7 D
when <constant_list> then/ L& p/ c* H' v: S) z
<statement sequence2>;
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else
& `) H+ o7 q3 ]6 P: [ <statement sequence3>;
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2循环语句$ Z5 \' T9 }3 }
(1) from <statement sequence1>7 x6 A0 G; l8 b) Z2 o
until <condition> loop
0 b, m. z& i1 X" A. I0 s$ @1 q <statement sequence2>; m* M: G) d: S) u) i
end; M1 D7 a9 J% b
(2) while <condition> loop
) g, Q5 e( P0 E <statement sequence1>;1 A j- u6 I7 p" s& {6 a1 a
end;
& P# m0 e2 m! r; @6 t (3) repeat
& R; ]1 T9 M) }* |' y& Z2 Y <statement sequence1>;
6 e2 k+ f4 v7 h+ |6 n+ Z l until <condition>;
- i' p) ]2 \+ N' e5 n3 C (4) for <condition> to <condition> loop
6 `5 j' K' t2 {2 U/ }! r3 _: Y <statement sequence1>;3 I. a6 H4 \- H5 [7 K! Z8 ~2 i
next;! ]2 z; L! b3 X1 j3 Z3 s4 k
3中断语句. z& Q# o; Y/ L: E$ E$ A
waituntil <condition> prio <integer expression>;6 _- i! }! W+ p
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& x' P: U9 Y4 A2 h& w" y: T以上为常用的函数！$ z& @! a: {( d& q8 B% u2 q
还有很多，如有需要我把资料发到你邮箱里 6 c$ F) \) I8 l( s [' M
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