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发表于 2012-11-13 08:48:12
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1判断语句5 f+ L& C! o& {: P
if <condition> then# `0 W5 W" d: C6 l# c! N( w
<statement sequence1>;
; j Q/ ?% |$ ^ elseif <condition> then
% D$ ]3 r2 ~0 k$ n" }6 i. h @ <statement sequence2>; K! Q8 q6 ~3 @" c- j2 g
else - Z5 N$ d, i; r2 F0 a b
<statement sequence3>;- B. i N% K/ j5 y8 c) y
end;
" Y1 V6 Y( l$ `# A1 t% g如果分支比较多，用：
9 a+ e! A. f% o& j$ V5 ` inspect <expression>) f4 ^5 i4 Q2 h7 L ~1 ?1 t
when <constant_list> then
" m* b0 S# }" n <statement sequence1>;
& a; c3 d- A7 S/ [% k& D" \ when <constant_list> then3 I/ V4 T- t2 P) f& {, N: d4 W
<statement sequence2>;
& t( u) n; u0 O/ w% N" \9 k ...
' f5 c9 P" r6 Z2 ? else
1 `8 q! a: Q7 k* f' I$ h0 z <statement sequence3>;
a7 Q0 e% ^1 ?6 {end;& Z( K$ n \) R' _7 L! Z
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2循环语句* N' H6 j5 H& R/ G( ?- J- s. O% R
(1) from <statement sequence1>5 S! i- B, U0 x) j8 t
until <condition> loop
y1 X* k% m9 J$ U' ^3 }8 l <statement sequence2>;5 x m" R& |) P6 i3 B$ G1 H
end;/ t1 d5 C/ _( e4 q2 q1 i
(2) while <condition> loop
2 \; y" o* w/ `! [8 @# Q& Y <statement sequence1>;) v; W3 T u r0 o, Q5 r
end;. l, _" W* x2 v7 Z5 d
(3) repeat 6 f, O2 z6 i7 E& y( L; K0 h1 A
<statement sequence1>;
. y& E+ F9 ]) F, N& d! q until <condition>;
, @' z& d* l; M (4) for <condition> to <condition> loop
1 M8 i9 `' ?) G4 S/ ^; ~! ? <statement sequence1>;
9 P3 a) m/ j* R- V5 R next;
9 K4 B) r: O. M3中断语句
5 T0 h% s2 }5 _4 p w) M waituntil <condition> prio <integer expression>;* y9 W' L& `3 c6 [0 {) Y
5 S" M, f7 E+ }4 i' L5 [8 |) e
0 o4 ?/ k F/ M, t `, k以上为常用的函数！* Z3 D$ Y: J% L, b$ g9 L
还有很多，如有需要我把资料发到你邮箱里 2 l3 f( \' E7 K" O% s* h
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