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发表于 2012-11-13 08:48:12
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1判断语句9 h0 W' S% u i
if <condition> then
6 l! Z( J/ n {: J7 a <statement sequence1>;
6 A; B& e# j& L" X( Q3 u# n6 Q elseif <condition> then
5 b3 R8 v M2 P* \1 Y/ x <statement sequence2>;& A+ `' O0 [- l3 n
else 5 _' W7 N# l; _! ?; H
<statement sequence3>;, g- r, `2 L. e4 v* E
end; s w8 ~& ^% D5 o* ?
如果分支比较多，用：
# I2 z6 `7 L8 {* |& I9 l inspect <expression>
, V5 Q, N0 H+ _8 O2 S( _; n6 J8 l when <constant_list> then
7 L/ ^, p( _+ F, @' r <statement sequence1>;* `8 w; ~! C3 W7 d
when <constant_list> then2 ^; U- X+ m; A+ A% M
<statement sequence2>;: |0 s d5 o, d) j2 _7 ?# K6 S% S- \
...7 d! a- N* t6 y% E% k
else
* \+ P8 {& t1 T; U4 J8 _9 H2 l <statement sequence3>;
6 O: A+ T2 \4 @: Iend;
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2循环语句" a/ f( f/ O. a/ x
(1) from <statement sequence1>
; T% h5 W% K# ^8 u4 u; U1 d until <condition> loop
% c4 |# N4 e& y3 u# F <statement sequence2>;* r* G4 J+ k3 u. k# `- j
end;
) e( P5 ?3 o$ z! O0 k5 d3 F (2) while <condition> loop
6 r7 ~$ U# T, [6 p7 ?2 R <statement sequence1>;6 I8 I5 d8 X: y2 d/ ~& j0 [
end;
" k# m7 `+ T+ O1 t (3) repeat 3 L) j* c9 `; j" I6 t- z
<statement sequence1>;5 A' g$ @ j# k
until <condition>;
) z9 I1 O. I$ E8 g# N$ O3 s6 A) N# r (4) for <condition> to <condition> loop+ c y% E8 \1 }7 y/ L n
<statement sequence1>;8 |: C/ u7 h+ y% ^ Y2 {3 M. g5 [
next;4 g" o5 G# b0 @& N8 b
3中断语句
# C3 P; H* m7 U& j: r$ d! t waituntil <condition> prio <integer expression>;
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以上为常用的函数！
& x7 D& c1 r# F9 T8 I" |% l还有很多，如有需要我把资料发到你邮箱里 ! j" N$ c% A5 s2 E6 `
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