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发表于 2012-11-13 08:48:12
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1判断语句
+ |2 _5 d9 `! [ if <condition> then) p4 [% n8 c1 d- f4 S5 }( y9 H* {# @
<statement sequence1>;
) c( A- f# ~/ f3 G0 i' t4 Y elseif <condition> then9 ]5 Z0 ^! k( a2 A p' l5 _0 j
<statement sequence2>;6 U% p3 \" J) G* f9 P
else " B& T0 L5 M. k' I
<statement sequence3>;/ O" _' }; }# M
end;
# ~& Q. D, S" E1 w如果分支比较多，用：
* K* L4 k6 m. X9 A inspect <expression>$ @" W( h, ~1 \0 T5 s9 {- u* E
when <constant_list> then: y ?5 B5 q e# K
<statement sequence1>;
1 I M) ~; g3 Z$ z: [" J when <constant_list> then
9 _$ e4 p5 Y; ?' s9 A/ H <statement sequence2>;
9 B0 D( i! A4 U2 k/ L7 j3 ~ ...
5 d2 }- Z' }& b t3 L/ o" d else$ c/ x4 C! o. J9 g" Q
<statement sequence3>;3 p" u4 l; Q9 s* m! I' ^
end;
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8 A( |2 c0 ]' w/ N" D# q# h+ _2循环语句
1 q8 P- `! t2 w q$ U (1) from <statement sequence1>9 h ~% w8 ^8 ?: b5 M( k
until <condition> loop% `( Q+ ]* h f' l: ~& F# n7 x! o
<statement sequence2>;
8 l2 B; b2 V' P7 G, } end;# H& Q, }4 ^: k
(2) while <condition> loop" ]2 E5 H j+ ^$ d7 k4 C2 V' {
<statement sequence1>;5 r6 b% z' X+ q, w+ R U
end;
7 A) ?# K8 O( p0 W2 q( o1 y (3) repeat 2 n4 X+ e& }+ ~5 |3 B9 B! N
<statement sequence1>;# X* x- O, D" g: [% A- U' ?( t
until <condition>;
* X* }; u. y( t+ a0 b. i( A; ? (4) for <condition> to <condition> loop
+ H) k+ C& D2 |0 L8 k- s$ k <statement sequence1>;
2 d0 C+ K6 ?* l next;" f( y2 L( }* ]( ^9 V
3中断语句
5 B+ N6 z( s* z" u9 l; ^ waituntil <condition> prio <integer expression>;# Z2 f( v, U" Q. d
* Y1 }( w3 W9 u' I* v1 ^
, p- ], }0 }2 ~$ ^2 }以上为常用的函数！
& D, \5 h! D! e3 e# ?8 Q |5 R4 c还有很多，如有需要我把资料发到你邮箱里
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