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发表于 2012-11-13 08:48:12
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1判断语句1 G1 o7 g7 |4 V" \, O; `- G
if <condition> then9 z1 k0 o* q2 r
<statement sequence1>;
# v. s* g0 j( K# ], Z7 F elseif <condition> then7 k& _0 J9 Y3 g; U) b+ y
<statement sequence2>; d+ o' ?: T7 M m6 `* C
else
# l" U4 y4 I* x9 Z <statement sequence3>;
7 ~+ C4 C6 s: B+ V9 n h, T9 k. | end;
1 Q/ |# a8 [# e4 H5 j) p" D6 F如果分支比较多，用：
6 A$ e9 M3 v, C6 e+ p8 r# K inspect <expression>
! E6 b, f8 @& C when <constant_list> then
$ K- f# S( v$ G L" S% |- N <statement sequence1>;
7 Q% s6 r7 |! O/ ] when <constant_list> then; |5 O- i# b8 c
<statement sequence2>;$ h9 L3 `7 g9 K) }* P
...
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<statement sequence3>;/ @9 o! e' p7 n( ]0 \
end;
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* F: J& E# b3 }1 i5 }. M8 B7 u: D3 ]2循环语句
# h, b: k' N6 x J (1) from <statement sequence1>2 {+ t% i% F h1 v# i# I4 D0 K2 ^
until <condition> loop
& K3 d$ G( t* P <statement sequence2>;
- D: j: F$ W( k% t1 T end;
" ` c* R% k+ T0 n( w (2) while <condition> loop
) z2 p: g9 Y( J <statement sequence1>;
$ a3 o: Z4 A7 K+ I& @ end;5 O4 w( ]/ m4 ~; b' g) P0 b
(3) repeat
4 k& ~! |/ o0 g: {4 n8 k <statement sequence1>;
* K; {' q; u* }& D/ S% @ until <condition>;
0 O& S2 B5 p. J8 j% T (4) for <condition> to <condition> loop- ^, T9 |; C" x% u) L! B' u6 [
<statement sequence1>;2 p) i) y3 l6 V( c3 g X
next;
$ o3 o# Z' Q5 u- E3中断语句
: X3 m9 S) I& G, }$ Z! L( i waituntil <condition> prio <integer expression>;3 z a p0 K! o2 t# z6 E: M
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$ G+ Q' ?6 m5 H) z% f以上为常用的函数！! J2 |9 V8 @# Z6 e
还有很多，如有需要我把资料发到你邮箱里 + p' Y1 c( J7 o& v9 Y- ~
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