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发表于 2012-11-13 08:48:12
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1判断语句: z( M! ?4 I3 \0 @5 r+ X3 x
if <condition> then0 o A) Y i x8 j& P7 ?' A& w
<statement sequence1>;
: v F: W; C. |. w elseif <condition> then* K# _- i9 Y. U3 F- H+ i1 L
<statement sequence2>;
2 ?* Q; R5 a, ]& w! W else
) E: a# e$ I3 m; x1 U. A <statement sequence3>;* q& I) Y+ X% U
end;
& u- L0 R$ Q( \如果分支比较多，用：
7 B. J9 b ^4 M( Y9 e8 F inspect <expression>$ \' h& ? f( r
when <constant_list> then
; ]& r8 f# [" { M; J5 J, c <statement sequence1>;) D: b# T" B( }
when <constant_list> then( A! C0 ^ G, q9 T* i: x; _5 c6 V
<statement sequence2>;! j# ]7 F+ ~* g8 @$ w9 {9 l
...! y- Q: {. L+ s# ]: d
else
" {) t* t0 c* T+ P1 d8 D. X9 ^- T <statement sequence3>;
' ]" B8 k( c9 b f9 e6 t4 Yend;
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. N0 G1 ]- N, g! H8 H2循环语句
& i) E- @1 a5 v2 M8 L (1) from <statement sequence1>; n3 @& n9 |; ^: a$ U# k8 @
until <condition> loop4 t5 ?: K* y0 ^( _ B7 A4 L
<statement sequence2>;
/ Q ^* G) {6 G7 W7 N) J) k( d end;8 G- z6 k, |) f: D! J+ d
(2) while <condition> loop
& z! T- Y; m6 R( X: n <statement sequence1>;
6 E, ?) }) y) ~' ? end;
, G9 q% }! h7 j, ?* V (3) repeat
Q/ ^* z8 M. Y, w* R2 O <statement sequence1>;
+ F+ K2 n/ |; P until <condition>;
( o& R. Y$ `# |( D (4) for <condition> to <condition> loop$ s* Y& J6 Z8 n
<statement sequence1>;9 U# T6 Z9 t4 D6 U" [
next;3 g! D% O- M; w( s& P7 Q6 `% k( e7 h
3中断语句" h7 e/ k2 b$ _6 W) R1 ~, H9 ?, h
waituntil <condition> prio <integer expression>;% e: c# G4 J( M i/ m/ v4 a6 Y
4 N8 j8 H1 M/ ]# ?
; Z9 r2 Q1 j/ K B* q以上为常用的函数！
* j! w/ f! ?/ U还有很多，如有需要我把资料发到你邮箱里
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