|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句7 b. y+ h. |6 V( k6 h
if <condition> then
$ M' |+ o8 a: R" U <statement sequence1>;
) ]0 i: L5 _2 H" @- y) `2 [/ O elseif <condition> then h# ?% O" B, _$ M$ p3 j
<statement sequence2>;8 ` H, N$ i# j+ T
else
2 q/ ?: q; `% k, j+ E <statement sequence3>;+ H" h! F; V( `- D2 f0 a
end; W& M/ b1 b. x9 Z
如果分支比较多，用：2 M, o& K8 E& O" ~
inspect <expression>
4 F/ v& ^3 M/ \- d( G when <constant_list> then
. _9 |% R7 V7 I$ E1 D5 V* r9 d <statement sequence1>;6 S+ Z+ x0 F- v! F2 O ?7 c& h
when <constant_list> then
, C) j1 J3 \9 a# ` <statement sequence2>;, B. L, k5 P) R
...
8 _, E; N, `' K+ F9 L& ?: m, I else
+ [, |; C# S0 |- Q/ ] <statement sequence3>;* q5 K- ^' D6 g3 `7 `5 {
end;
% X q$ I/ X9 S9 o& j* i
0 Y+ O0 j1 t; a* o) n! E, ?) S! Y- e% `9 A2循环语句2 A% ]; T0 U) G6 W
(1) from <statement sequence1>
+ H2 M7 p; F7 p- z* x until <condition> loop/ _0 L% _0 h9 W, J1 y& V
<statement sequence2>;
- E2 \( c; {7 S G% R+ z+ H end;$ e; V4 n; o# i) E, D+ H$ k
(2) while <condition> loop
- e- q& m- a7 ^$ }2 L <statement sequence1>;
: R4 ?2 B) b0 F/ n, K end;
& P* ^6 E& F* u/ F6 e' o (3) repeat
7 h5 e4 g0 o8 C9 V' t. Y9 X <statement sequence1>;9 f! o& C! g7 e* C" Z
until <condition>;; k$ D4 P8 _: K# U) V
(4) for <condition> to <condition> loop
9 ~ J1 R: r( V' a( X4 p <statement sequence1>;
' B9 a+ h' _0 o0 \( A1 J H next;+ z" P* l' {/ M, s9 }" C+ W+ {
3中断语句
( w3 b1 Z1 l5 C0 q waituntil <condition> prio <integer expression>;% |: z" O; `& O4 N3 I
4 \5 m2 N8 H5 C% Z( D' m
7 o6 i* z( f8 O/ A/ ^! {2 Z5 f以上为常用的函数！
# [4 _' H3 d) v) A2 T5 }还有很多，如有需要我把资料发到你邮箱里 1 H, A" g1 Q; k& \; q3 d K3 L
$ w9 u4 i x) R4 w0 e, d4 l# k
7 `1 F% q! I5 a5 {* F$ w) R) t5 T$ u- I+ H4 C7 j: e$ M: K( v
: `' i7 [( l8 y0 i e4 e* }# e
^: L3 K# _& l# f! z4 J1 y; @2 P- S8 R1 s h: o+ C4 p
. Z' a; [: d& P
* L- ^7 [- S+ m+ S! J* T, A
+ I- m7 `+ o+ I9 \- y! m! M
8 T4 N; u y; v7 V1 D0 } |
|
[复制链接]
