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发表于 2012-11-13 08:48:12
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1判断语句
5 \ T& ^' @, F, E; b" ]. Q/ [8 w if <condition> then
5 n* m' t3 L( {) J+ c$ _% H+ X <statement sequence1>;
4 Z( G1 x9 L. C( M2 D3 k3 U) l' X& h elseif <condition> then6 f. Y& y( S5 H) t
<statement sequence2>;
2 e/ i2 T* r- F else " T a+ I0 [! g& ]. P' A
<statement sequence3>;
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如果分支比较多，用：9 j) V; _, L6 c, _8 S5 ?' x- f/ I
inspect <expression>2 A6 ^1 y6 ?" M) s _. W+ X
when <constant_list> then% e: a4 p- u0 i( B( D; W
<statement sequence1>;8 P& E- P0 C$ i1 {
when <constant_list> then
' C* v$ G( n- `! q) m! ~2 ]# j <statement sequence2>;6 O0 h. s& x5 G, X# I% a
...
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<statement sequence3>;: j' |. U! @7 B) L( l) P! F
end;' }3 x: u( S5 T4 u
4 u; P# L B0 }/ H8 n" M2循环语句
2 m- w1 G; V5 E+ M. ~ (1) from <statement sequence1>2 l4 P( [ C2 ^
until <condition> loop7 M D- A& e( N, n5 D& i% P* |4 L
<statement sequence2>;/ G; l, O4 i/ R# g+ |
end;
( z# f% z: i2 q3 |2 }4 ` (2) while <condition> loop
9 X" q) \- v9 J; @5 _ <statement sequence1>;' B0 Q% w5 C7 s, D
end;
, E i/ J! ?. {0 Z$ {9 y (3) repeat
k$ @& i/ ?* Q <statement sequence1>;
3 U3 z& H' e! U$ `$ v3 {5 ` until <condition>;
- l) T S& w2 m$ s F7 U% j (4) for <condition> to <condition> loop
7 C4 R0 M' |0 R4 a <statement sequence1>;2 j3 k1 }" ~$ J% L+ h; h. d
next;
) [4 o$ U) n. w) Q6 l3中断语句% Y. P( X/ b. }2 f d
waituntil <condition> prio <integer expression>;
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; c! q: k$ L l9 }, N' h+ L以上为常用的函数！
c) {/ c8 ]* K还有很多，如有需要我把资料发到你邮箱里 7 {% Q/ |( A2 Z+ o
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