|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
( k" T) N @* o9 X2 i X if <condition> then1 v+ e' k; a0 @
<statement sequence1>;
# e7 @7 C$ ^: o8 s9 ~: z elseif <condition> then d8 P( q0 y* D3 }' k: r0 [
<statement sequence2>;
$ x& V' D0 \% R" @ else 2 J+ K: T; h7 z9 h" _
<statement sequence3>;
; g0 B& D2 V3 o. e0 [" ^( u3 ? end;
& ] \: w5 F0 j如果分支比较多，用：
: H' Y0 J# B7 X* Q, X5 I inspect <expression>8 |. w1 l P" u0 W, \) _
when <constant_list> then" E& S1 M' C4 j
<statement sequence1>;
) R F& t% R; t$ K) y when <constant_list> then
$ y# _5 h' f& a" A <statement sequence2>;
; \' C+ v9 I1 M" g* w: o ...5 g' X, b4 J4 ]+ W) m; ^+ h- {
else
+ P0 n/ h" t( F5 G! P5 B" x <statement sequence3>;
5 r$ z) D2 k. F7 R' B4 l( Wend;+ v% t) z5 b& l! O+ Z
, y2 R1 m. i5 Q2循环语句
8 z/ T0 y% B0 ^" @ (1) from <statement sequence1>; i2 q* C0 [6 X' S R2 E9 ]
until <condition> loop) O! F$ J- H" W: c5 v) p
<statement sequence2>;0 Q, D/ l- a% u" M d3 z5 ^
end;4 ]" X9 R7 M9 E& q6 l$ j
(2) while <condition> loop: G1 Y* Q; P, e# k' k0 I
<statement sequence1>; M( r( z% o6 W: ^/ G# d
end;
1 [0 S. k/ C( B/ M (3) repeat + l, x& v. ^8 D" U& ^4 D, S
<statement sequence1>;- M( O! U, _; G. K ^
until <condition>;
3 Q$ e4 ^8 S4 t/ n (4) for <condition> to <condition> loop" D/ |- T. q. k- }
<statement sequence1>;
3 j, z9 U& K; y. C next;
6 m" v% j2 ^; h3中断语句
: F6 \2 [# k5 F& ]7 N2 o+ ? waituntil <condition> prio <integer expression>;
$ {( i' i% [8 K/ r+ V, ~
$ k$ k o/ r; Q: _8 A" Z5 u
5 w/ D0 M% \4 [ m$ `' V( ]. r0 E0 t以上为常用的函数！4 j. `7 x6 ^% D% i& n* u6 q
还有很多，如有需要我把资料发到你邮箱里
" c* _: [$ ?9 @+ X3 y! n% A6 x" m3 x! M) q5 b
1 y1 y& ]8 ^8 M( O/ g' Y+ @4 f/ O) q
. j: y" u9 ^ K8 h( n7 h8 L" j
; Y9 Y1 ~0 S% B( H+ d) l7 T
) m' b; t# E1 ?4 p
/ t& r: Q- s* `, v5 h
V) Z7 N9 x. L& h% w
4 @1 o L4 N9 @4 B3 u4 O; M 4 ]' Y3 \: h& r# j. x$ y) m
|
|
[复制链接]
