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发表于 2012-11-13 08:48:12
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1判断语句" k) y; z7 o# {: U6 B3 n9 i
if <condition> then# Q* c: { C8 S( P1 N& V( T* [5 B9 S
<statement sequence1>;
* q+ u/ Y2 n0 @ ^ M$ `7 X* b elseif <condition> then
& r% @: t z7 c+ l% L/ p1 l( M <statement sequence2>;* B/ w! L2 {( H! F) A
else
. n) Q' O* a& v. A <statement sequence3>;9 q% W7 R K! A, j* j3 c+ V, m9 \
end;+ R3 w4 m- k* L
如果分支比较多，用：
$ O+ l( U( e9 l9 Q3 L inspect <expression>& p8 L6 w! e( ~" [* R( k
when <constant_list> then6 N# e, \* k/ d) u$ R. ^* S
<statement sequence1>;
0 Y6 I4 y2 _* V/ W when <constant_list> then
& ^( L/ K: f. ?- F <statement sequence2>;
) V1 L% u6 V7 ?+ {4 ^ ...
& N; k" X* \2 ]" E" M else
( l+ w2 L" ]) m- G- {5 } <statement sequence3>;
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2 k E, \+ e2 k
2循环语句
, }: c: \) S% W1 E |! J# H$ N8 q (1) from <statement sequence1>
8 r* B2 k# a7 _ P- k3 Q until <condition> loop% n+ X) L- A2 q7 ^$ c
<statement sequence2>;
- m' o1 w. |) Z0 ~# [ end;
! M: u) i. K2 m! l (2) while <condition> loop: f2 `0 R, j" V8 G! {
<statement sequence1>;
' a3 }# e; b- n: g; }8 h* B( Z end;
5 Q2 k* t) j' I$ k0 t R k (3) repeat
2 S% k8 d# G! f7 g4 j <statement sequence1>;# D: ~ G' X6 r) ?
until <condition>;
" z' C1 G! `4 e9 p0 f8 \ (4) for <condition> to <condition> loop. i4 K- R: s0 C
<statement sequence1>;
! r% v" k* M% y" C2 V1 C+ M, z next;: _7 y* ~, d3 i' _* R3 p$ o; E
3中断语句
( V+ y1 o2 r- Z& W$ B/ ? waituntil <condition> prio <integer expression>;
* Q3 |' A7 d3 W, @) ^& q5 T
4 `5 O2 F3 B) \; w8 ]1 O" q4 r$ j: r) h
以上为常用的函数！
. s# `* q2 P4 P a! K还有很多，如有需要我把资料发到你邮箱里 9 y; j% q2 b5 v
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