|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句' X6 M& J9 Z* d! O$ N ^
if <condition> then
9 J, @5 ]1 s$ g* f/ Q <statement sequence1>;
% J! M) V& c' Y* ^ elseif <condition> then: c. `2 h) A3 z+ T
<statement sequence2>;
% e0 ?. g; k- y1 M# X else
3 q' v3 B1 \ D: |$ S# H3 y7 v% B/ Q <statement sequence3>;' Y, V- z% _( s' u1 ~7 p5 P$ d5 a( b
end;
/ h p6 W! \9 x k* @8 U如果分支比较多，用：# c4 y* u$ o1 ?0 o; C$ w
inspect <expression>
3 @" _! E# o% k3 e2 O, r when <constant_list> then+ ~, ]# n& c, p3 _$ u8 k
<statement sequence1>;/ Q8 X. ^& X0 v; S9 V# g
when <constant_list> then6 i; p' ]: l/ Y( h
<statement sequence2>;
' q1 m( p. T% Q3 R, q ...- u3 U3 x# C; t+ p+ p
else
* b2 y! l& ?2 Z& I <statement sequence3>;& Y! ?( _% q* m- J$ L
end;! Y J/ X1 A- {" D
- @: T! l' r% B
2循环语句, s' j6 ^2 x: _# v q& ?
(1) from <statement sequence1>
7 _1 ^, _6 c0 K until <condition> loop
4 {' c) ]6 K5 ~7 ^) u. L% N <statement sequence2>;
) N/ J; q, ^, ~1 t2 D6 L1 h& j end;/ K& U& g1 }4 i' _. ?) j
(2) while <condition> loop+ S* v, O* E+ l
<statement sequence1>;
( F e j# ^5 E P0 z end;
3 V0 Z( l' O4 _& K) W5 z" M (3) repeat
9 q# ~- |1 [" F8 j6 q) M' L <statement sequence1>;
, o6 z4 E8 H* D' d! ? until <condition>;5 e: E+ Y, O Q k
(4) for <condition> to <condition> loop8 d, P5 T" m$ x2 ? z
<statement sequence1>;/ y y# B2 B" ?
next;
) p- ?( H5 x, j6 Q3中断语句( B6 c: o% S' _6 \
waituntil <condition> prio <integer expression>;
' L+ Y7 ]3 K0 x! g; W3 J0 T( j8 Q3 q0 y L
! T7 u) H% T- q% H
以上为常用的函数！9 {" `6 n% Y9 o/ ]! r
还有很多，如有需要我把资料发到你邮箱里
& z% w; u% `: `2 k1 V! I* p/ `8 Q) d& v7 g' q5 U/ J
- T. U+ z2 v/ v- K' M1 L5 Y. z% V9 r1 p4 K6 l, L$ C
; R8 e1 ?' j' D Y( A( ~% ?
, N5 Y. F- V, p4 z0 M2 N. e, `& C* d+ R& A& Y0 p; d
2 j0 Y+ y! n/ g
$ |( r, e: i4 K& Z( s& ?9 g. y) c; j% `
& d; i: i, d6 E/ K2 I q* [9 X |
|
[复制链接]
