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发表于 2012-11-13 08:48:12
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1判断语句
$ ^: \6 _% ~# o A( Z+ \; U F; i if <condition> then& W; Q8 a% z! _" c( J2 W/ x
<statement sequence1>;
) W3 r# i, j/ h2 J G elseif <condition> then
; e _! B* r/ u6 P7 P <statement sequence2>;, S9 h% u2 Z8 ?0 l* C
else
: Q6 H* y3 G9 @; ^( U" d# m <statement sequence3>;
8 @% D" m! N3 |' Q. ? end;/ }& r# d% j4 t R. R3 P# T N
如果分支比较多，用：
# x) b6 l+ O6 w( C8 W inspect <expression>
, s6 m7 ]* q! W when <constant_list> then
" j8 E7 R3 e- c: \7 ~. X <statement sequence1>;
u4 z& C4 z" T) G when <constant_list> then. m; c ]7 ]5 O1 g) l9 A M
<statement sequence2>;# ?1 S \2 O5 M+ ]
...
2 ^7 y/ h7 d% l" P else# [0 s) R2 K, J- w: C
<statement sequence3>;
T4 Q5 V$ Y7 j6 q& p( pend;
' K1 Z1 [% `$ y! l- x8 u! q/ y' [; E: Q
2循环语句
0 j: l- v: j1 s# R" N (1) from <statement sequence1>
: a- d5 n' c. }5 }! q* D8 b until <condition> loop( R! ?- ` @1 q( F% ^! |
<statement sequence2>;
* n. a! E+ z- q0 [' q end;
4 [2 s5 g) K; q% u4 f) V (2) while <condition> loop0 ?* w2 Q& T. g2 ~4 M5 r
<statement sequence1>;
- @' O8 G4 [5 c4 h8 G# ?. Q; D% N end;
+ ]3 {& \! S* Y (3) repeat
& g+ E* K+ z; N* M, ? <statement sequence1>;) }1 C- X# [( Y1 `: v. J0 b
until <condition>;
2 E% ~. D+ q. p8 s9 E! O( B4 t+ }3 | (4) for <condition> to <condition> loop* B) u+ n- t9 P4 E5 ], f" p2 B
<statement sequence1>;6 J8 Y: M) q; K7 v/ R3 ?/ O
next;
! A( H: V# ?1 d8 S+ b3中断语句+ z) O7 |6 d3 x I; B2 W" Z: E
waituntil <condition> prio <integer expression>;$ V6 Y& {) [! I: `; j
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以上为常用的函数！
: s# y9 @9 ?0 O" u还有很多，如有需要我把资料发到你邮箱里
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