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发表于 2012-11-13 08:48:12
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1判断语句$ ?% \2 t9 R( u i
if <condition> then
7 R+ M p: `. \0 I <statement sequence1>;
" c, }" l' Q ]/ Q) [ ^ elseif <condition> then
% U7 [, o7 P7 x* f( }* l( u) ~ <statement sequence2>;. E" S0 Z$ O7 L
else
! i1 t" d7 \ k2 l2 J <statement sequence3>;! a& u) d7 `% z2 S9 {$ x
end;7 i1 E# H3 S: C( b+ Z2 M7 l8 L
如果分支比较多，用：
3 Q: A: w4 F- p6 e inspect <expression>1 [% B( `' ` C: j2 t
when <constant_list> then- b1 L6 |9 B& F& T3 w
<statement sequence1>;; C8 N2 _4 l, Q5 } U( L
when <constant_list> then; `3 R4 V1 {7 n2 D9 `6 D) X7 d
<statement sequence2>;
+ l! u4 A- j! J9 B ...
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<statement sequence3>;
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4 q4 F: ]* A7 U& p( h: W- m2循环语句- d% \1 M8 r5 L3 |# X1 {
(1) from <statement sequence1>
- J! c4 A* T5 r8 e until <condition> loop
& V3 n. R! h8 A0 U9 t6 M0 @ <statement sequence2>;( S2 U2 L9 E# F8 N. O/ y k
end;; f7 ?/ Y4 q- C( w2 y
(2) while <condition> loop# W/ y# T% R- O! f# t* w
<statement sequence1>;' U; }1 f2 |: r7 `& [
end;
8 Q+ s, F# B* U1 }1 {+ w4 q; k. e (3) repeat
* v% Y& i' F" k: t <statement sequence1>;
( [7 s/ w$ m$ w& \4 C* ` until <condition>;
- s5 E" F" s6 Q D0 ^ (4) for <condition> to <condition> loop
Y9 g3 b% F+ ]: r! g3 e+ I! V <statement sequence1>;
. D: }( H% T" n7 I& v& ~& F, t next;1 c% \6 Z b* |, ^& L' H
3中断语句: K4 Z- w2 F1 Q/ ^8 g& J3 I
waituntil <condition> prio <integer expression>;' `1 H Q7 X' h: l1 r4 q- l
; V, F! u/ r; y: h! z, y
% V4 g# E( W) O C0 Z c m" Y0 y% C以上为常用的函数！
0 K8 D0 Z- X, y4 }还有很多，如有需要我把资料发到你邮箱里 - C1 i! {! j4 J3 m! D2 q0 y
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