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发表于 2012-11-13 08:48:12
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1判断语句8 O! D; d% X, u# r2 ?( Q' z
if <condition> then3 I# @- F ~2 t+ h* k$ w. K$ c8 R
<statement sequence1>;
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<statement sequence2>;8 D. }* Q9 t: e
else 0 p ]: c7 e) _! ?
<statement sequence3>;
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如果分支比较多，用：: A& ~; ~& @6 Q0 s1 H4 B* h) ]* W
inspect <expression>
% d; ~, {5 G+ b when <constant_list> then
6 `2 o9 w6 Q1 H6 j, g3 R+ x& \$ k <statement sequence1>;3 X+ v: |3 c$ k2 ^/ Q
when <constant_list> then6 m; c) W/ E7 ~0 F, A O% n
<statement sequence2>;. A& R2 c. l/ M: b3 \5 Q
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else
# |3 P* n. ^# ]3 m, f <statement sequence3>;
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, s f3 D9 j4 m8 ]/ V; O5 t2 v; s+ x2循环语句
! M$ ~* z v0 i8 O2 O9 L (1) from <statement sequence1>, G- u0 E! S6 a+ _3 o& h9 |0 a& z; k; \
until <condition> loop# G* ^5 R( O% l' V7 O
<statement sequence2>;
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(2) while <condition> loop1 Q* ~2 }* q* g9 K- ]# @/ y) a
<statement sequence1>;
v" o2 s+ ^& i, t end;
9 x- S3 K7 [5 I p' n+ t- ` g4 E% r (3) repeat + z j7 b8 h: m- ~
<statement sequence1>;7 p s8 l5 T u$ Y; b
until <condition>;
8 S, p- L- D# d7 y1 ?; { (4) for <condition> to <condition> loop+ J+ |$ B0 H; p% S
<statement sequence1>;
/ p+ s3 g" K: Y8 o0 q3 s3 E next;! t6 ?. {( i" X# |
3中断语句
: ?2 o% \7 Y8 `6 {. N waituntil <condition> prio <integer expression>;% K, n; O, |# y* x/ w
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以上为常用的函数！
" |9 Y. I0 X% U8 G! U还有很多，如有需要我把资料发到你邮箱里 6 t) j! T: C" J j+ m$ ~
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