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发表于 2012-11-13 08:48:12
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1判断语句6 {$ R' o) N7 J1 D% T6 n; c$ [$ G
if <condition> then
0 \: E& {. _4 E9 U' w1 G( V <statement sequence1>;
1 x/ J4 S+ u& `( l3 @7 Q elseif <condition> then. Z$ z/ d/ Z$ |3 Q& N" S, K0 u. i% ?
<statement sequence2>;+ k% Q/ G* F5 m
else
- Q B8 r* i3 O; l8 P7 O% V" Y8 e <statement sequence3>;
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如果分支比较多，用：9 R: y# @. O0 V V
inspect <expression>
3 o( Z( U4 x. x& `: C; G- m2 m when <constant_list> then; `: R8 @( x' n+ U% [
<statement sequence1>;: C- A' U( p, {* p; V
when <constant_list> then1 q0 ?3 K1 z, z) Y0 g* y
<statement sequence2>;
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else
; n, {( A7 Q5 g! S/ N+ z1 b <statement sequence3>;
7 @/ g+ N: m$ ?0 [2 Qend;; z3 w& V8 U3 S7 }
' A# M7 X0 X% r' S2循环语句 c: }& W/ O& Z l& H, s
(1) from <statement sequence1>- C3 u6 p x9 i6 E9 |
until <condition> loop
! {- G3 N% g2 y1 \ <statement sequence2>;
( ]) b8 F. y* f3 p: t7 \" {5 l end;
5 I3 Y+ c: k' m" ~9 F1 K (2) while <condition> loop8 W5 N9 L/ R9 V# y) {$ a5 Y( y
<statement sequence1>;
1 b5 w$ y, W4 c0 v end;$ H$ Q) W5 C2 u) t, Y5 r" P
(3) repeat
+ |- Z) r! D: C3 i. S6 ^7 Q <statement sequence1>;
( k4 U8 [) S4 X0 d until <condition>;/ C0 H0 N5 |' N! G' b
(4) for <condition> to <condition> loop
0 o) Y' u$ E7 e. D( w1 t4 k/ m! o. Z <statement sequence1>;
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3中断语句4 i' z; q% O |) V) W
waituntil <condition> prio <integer expression>;1 P" }. y( b( x" {
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* J2 H/ K4 T) r+ R& V2 E以上为常用的函数！
4 i) b/ K; Y1 d2 W( b还有很多，如有需要我把资料发到你邮箱里
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