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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
# \. z2 l9 \! y5 |( q if <condition> then
6 |) l- {, z$ J# y8 H& h% o <statement sequence1>;
w7 t0 v/ ~) u( r8 a elseif <condition> then p0 @. D. H. `" ~
<statement sequence2>;( J0 U* x5 ]3 a, Y' J! f
else
6 s( Y9 ~8 Y I# }: P7 G9 O <statement sequence3>;
" ]5 @! J3 T: K# R8 G8 [4 S end;
$ C/ C! ~" V* P6 E- H如果分支比较多，用：
- E: l7 ^7 Y, h/ u& c inspect <expression>: A, z* {* }9 d* F' i) o) i" w6 S
when <constant_list> then
3 B+ p7 F0 I& G# W& Z$ p" ? K <statement sequence1>;4 ^! _. ]# O$ q+ @4 Y! r; _0 A. x
when <constant_list> then" N2 B1 W- M0 {: H* y
<statement sequence2>;( k: w/ M; Z' _9 ]( o
...
/ e9 c6 `8 t x5 j! f! ]/ D _ else
# @# ?/ p/ Q+ P7 X( ^5 g4 O <statement sequence3>;. F9 o0 K8 |! d! a) B& G7 b
end;
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2循环语句
* Q3 N8 G' \* B (1) from <statement sequence1>$ L4 M N. @3 Q/ C
until <condition> loop7 g1 p% C' @6 @6 K0 R0 [
<statement sequence2>;
" w& j5 d$ E" w& t+ F0 I$ g# m end;+ }* R2 e% V8 M1 D, h, n
(2) while <condition> loop9 P2 B) e% i+ C
<statement sequence1>;$ q# p9 R- R/ Y3 N
end;
$ Q, Y* G& L/ w0 L; t% E (3) repeat % e& z2 I% g9 j+ X& S: H; R4 k: \
<statement sequence1>;, u/ [( N& ^+ A% C+ y( p# @
until <condition>;+ h. {7 O" y c: Q, y- T, e
(4) for <condition> to <condition> loop% k( o% g: L3 h% c( T' }4 R/ G
<statement sequence1>;
; [4 S5 E" v3 |' n next;
% x; [- k: Q7 X4 k+ {7 A7 s3中断语句
0 Q6 g4 o* a( T @2 @' F waituntil <condition> prio <integer expression>;0 s( c6 c+ _# r, l" o
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2 R9 ~& o" z9 a* a& g P$ ]. ~以上为常用的函数！9 ^) l) c6 T" N/ c- D
还有很多，如有需要我把资料发到你邮箱里
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