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发表于 2012-11-13 08:48:12
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1判断语句
# @- |/ q+ k4 P if <condition> then0 b; V* G4 i6 a" O( J+ M
<statement sequence1>;
4 Q5 z* a. a( e1 } elseif <condition> then$ t) s7 f; K$ S; c4 y4 t/ r8 e, _
<statement sequence2>;
$ u( r9 ]" n+ _$ [8 b* E* e3 ` J; w else
4 \4 ^9 z8 E1 Y/ U3 r; W <statement sequence3>;% ^" z g4 {! Z$ O9 n
end;
4 z1 k6 p9 D% r9 f* B& n3 m如果分支比较多，用：
2 [* m! z! Q( J: o inspect <expression>! Q% k+ B( |! O8 l
when <constant_list> then
2 m7 d \# u$ n; C+ q <statement sequence1>;
+ o) L. ]5 D# y* c" F when <constant_list> then
1 R0 B2 H) F, f0 | <statement sequence2>;$ |/ o( n% ?7 o2 D( @
...
9 |7 a' q! Q* h" W2 u$ N# X$ W else
1 l [$ J/ r# K8 P, e! X <statement sequence3>;
\& D0 u% J% `; }end;
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: c3 A+ W. `- i8 r( `( X2循环语句
( L+ p! U* h' ^6 E7 c6 ]9 f2 ` (1) from <statement sequence1>
" o( e5 N) Y$ y9 [& @, N until <condition> loop
9 A; i) v" p* @, u+ a( q <statement sequence2>;% @5 z, H; k* B+ D4 ]
end;/ x' f; v+ w/ b) b( c( W3 y7 i
(2) while <condition> loop
" d2 D8 M1 ~. t <statement sequence1>;
, ]- ^: Z1 ?' b1 A end;) m1 x: f1 K# l0 ?/ \0 ?& \. q
(3) repeat
4 u! [5 {. C2 @! z3 ~1 y+ a <statement sequence1>;
; z4 w( ~, Z7 i0 ^% y: V9 m! @ until <condition>;
& w: G+ {1 B; s! v: X (4) for <condition> to <condition> loop& ?2 E) I9 _ S8 V/ U5 P0 n
<statement sequence1>;" a/ s; r1 Q& F" P5 w
next;
0 G" F* d# {$ s3 l5 o1 N3中断语句6 D- ?& {8 x) X9 ^* m' x9 \0 F; o5 V+ B6 g
waituntil <condition> prio <integer expression>;
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' L5 o- I( }, x9 O* p) ?
( @: u9 X& j; D以上为常用的函数！
7 N6 Y* w! G. d! y3 G6 b2 q9 O还有很多，如有需要我把资料发到你邮箱里
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