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发表于 2012-11-13 08:48:12
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1判断语句3 a* G8 R0 o: M! Q, O& P
if <condition> then: `5 S, N) ~7 }! K
<statement sequence1>;/ C* C% Q" W, g# M# K9 M/ R
elseif <condition> then
, O1 e8 \2 o" h" l <statement sequence2>;
0 y9 p: {+ c" T else
) g, i8 O0 i( C: _+ J <statement sequence3>;
$ J% O0 z2 l" [9 z7 s end;6 W$ U; k3 {( ?) t' y+ r# F
如果分支比较多，用：# F. X' ?/ E6 o$ c& e; Z" P0 h
inspect <expression>
" L9 A1 n1 s5 R- Y' B G" e when <constant_list> then2 u, k- H/ a% d. D, V/ B: W
<statement sequence1>;
* q# C- a4 {' p- v; i: m) z1 } when <constant_list> then0 g1 K8 j7 I# u9 v) J8 i
<statement sequence2>;6 B6 }. u) F- F) t- j0 ]
...
0 ] b1 I0 T) a; h4 t3 @ else
1 Z2 r. \/ u% O& P <statement sequence3>;( ]4 w# N2 p5 ]( f; Q
end;
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2循环语句
6 s2 w( g. i$ q* Z0 H" t (1) from <statement sequence1>
( a$ g# x- d, h& m0 Q& L until <condition> loop
) v5 y; [9 s F7 G$ c% x- f" D( s <statement sequence2>;; o, ?1 G& Q: X
end;
: H% B0 Q6 {% z2 j1 Q; J8 e (2) while <condition> loop
; B i: `% L2 }+ W" W <statement sequence1>;
% d5 C" V* W- `7 }/ S& Q& w end;- K2 s+ x' ^+ |* x& N' }
(3) repeat 2 O9 f- u( b" o9 }
<statement sequence1>;( L+ C. Y& P9 P0 A( X/ R' W
until <condition>;
" U3 J5 I6 q3 J' @" f) \ (4) for <condition> to <condition> loop
) c+ Z( W: A* p/ H" p <statement sequence1>;) P# V) F0 D `
next;
! b. y; K; X$ n$ S/ G3中断语句0 C1 Z- O: N% K
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
2 ^$ T+ E# k7 Y" X5 f6 X6 a还有很多，如有需要我把资料发到你邮箱里 , n: _3 q1 g* {$ k! A
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