|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句- q6 s/ D; K/ V& D
if <condition> then: U, t: p5 B% n# E0 }
<statement sequence1>;
. a/ t; `, ~* V elseif <condition> then
X* U# y/ T7 ? <statement sequence2>;+ q1 Z5 L+ O6 e1 c: W
else
0 t* p _ U4 U' n+ o <statement sequence3>;: x; E4 ^/ h# m4 u( k8 U
end;
% ]6 D6 U' [* W8 g9 P如果分支比较多,用:
4 S8 R- f) t; G* C inspect <expression>
" }/ R* I1 N9 K9 j K when <constant_list> then
% L' N8 H8 R3 R' I4 | <statement sequence1>;
$ f: e' B& }- L" f: }$ D when <constant_list> then
2 Y$ i e/ }* D2 d <statement sequence2>;
6 u H$ @5 g& R- Z1 b" Q ...$ h! \1 Y% n, K1 g2 |
else4 z. ^' c0 p% b' d
<statement sequence3>;
7 H, k6 i- k) m, T8 o" hend;
9 D& W* x) ?4 x3 ]. A
2 d0 H: r V. W$ e. x; T$ e" v2循环语句* q4 I5 n( q; n* [; B, B/ l
(1) from <statement sequence1>) Q) t" n/ f) V
until <condition> loop# ]. D) ?3 [1 [% h4 f. q8 f/ I
<statement sequence2>;5 g0 X% c* d; ~" q3 z! D) h
end;, P8 t$ j4 |$ |- {4 I
(2) while <condition> loop
2 K8 [+ b5 V2 D7 c* h7 r X <statement sequence1>;
( E3 V- y# s0 t: q end;7 h$ O% L9 K0 w3 O/ m9 E/ } J
(3) repeat + {4 ^1 q5 Y) _9 g3 N8 o6 q& b
<statement sequence1>;/ U8 _+ A% b/ C1 _* K, W* j" h) v. ?
until <condition>;
& V# l8 l/ v% D* s (4) for <condition> to <condition> loop
- B" j! @7 ^3 F5 P9 P <statement sequence1>;% J1 w+ f e) Y; c6 j
next;
. n# y5 L* R2 |( r9 L5 }5 v5 ]3中断语句, \1 e3 B2 f7 K
waituntil <condition> prio <integer expression>;
9 R+ Q4 Z( ?+ g' k: p6 O2 \# Z8 Q8 y% A3 o7 g
4 X. U2 x! j3 z9 D9 E以上为常用的函数!
+ a2 P6 b8 f: X6 O) P还有很多,如有需要我把资料发到你邮箱里
. C% ?1 I: i8 r1 q& c8 B! A/ B# j1 y& }& ]! y
% Q7 R0 d. I/ ^
$ U# K! I8 |0 J6 G3 w9 ^* \
# z' Y, Y6 P# W. i& h1 l7 P3 G
) b5 A5 B1 K Q6 O
6 r4 x9 G0 N2 ^! Y5 g$ ]
: \9 Z- H6 ]) U3 Y& {# c
4 u( b3 ]8 o" K5 I$ j
, L' W! t9 S& I! i D# A8 x1 k # ?$ \- p( t& O9 }) o
|
|