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发表于 2012-11-13 08:48:12
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1判断语句1 N J- a5 K# ~
if <condition> then& n8 P9 w2 [3 j- Z
<statement sequence1>;6 f2 r1 x8 w$ V: ~* ], P
elseif <condition> then
- }, f9 v4 R4 S9 y) ~6 P <statement sequence2>;# |( H+ t8 d* x0 Y8 O
else ; c- r1 n8 m: N2 A0 Z; ]; a
<statement sequence3>;
i# M% q0 l. S3 A; R c, O end;
! e7 y; i! M" b) d7 J9 G+ N如果分支比较多，用：
- ?5 Q& n" Z4 s6 S- b! y" Z inspect <expression>1 \0 x- L& A1 ]0 V s) [( A
when <constant_list> then
- Q/ Y8 P- K; P; m: q9 F <statement sequence1>;% X1 H, a9 I: s/ d# ~ q
when <constant_list> then# b% {% |( i# P2 z8 T
<statement sequence2>; W1 S& q7 N4 Y* j% g+ v! ? z
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else
9 Y. C$ ^* K) g" J# ~ <statement sequence3>;
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$ J7 x8 t8 V; l! E1 ?' m( _$ U2循环语句
+ A- S4 ]0 \' W5 I5 N (1) from <statement sequence1>* V% L( x# T1 N- y8 m/ S. ]
until <condition> loop
& [$ E4 Q7 b% ?. Y3 C <statement sequence2>;8 i& e' k+ L- q* V4 K7 A2 w
end;
5 s U% S5 P8 |; ` (2) while <condition> loop
: g1 {& R# ]* J: {0 t* I. g <statement sequence1>;! ~! {9 H1 e, t$ _9 N
end;
( ~1 \; y- T% W% F (3) repeat 5 W. C) M5 C3 C5 B
<statement sequence1>;# ]% i6 ?& e7 _1 j9 s3 y! M
until <condition>;) h1 q2 g' w' M/ O+ w$ k
(4) for <condition> to <condition> loop
% }# _/ g7 g2 {6 x6 I' d <statement sequence1>;
& ~2 }9 P! A, g next;$ ^# H4 e; ?* g2 h4 F. y% U( r7 E& G
3中断语句8 |5 B; E6 ~( p0 S4 Z: b. C
waituntil <condition> prio <integer expression>;
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/ q, ?2 @( L( L. H' z, }以上为常用的函数！
" L6 \4 Y3 J: i m1 r还有很多，如有需要我把资料发到你邮箱里
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