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发表于 2012-11-13 08:48:12
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1判断语句8 R s m! u- }
if <condition> then
$ l# E$ C9 X, U <statement sequence1>;$ W* t& @, N$ r* R- `
elseif <condition> then9 r% I2 E: d3 G8 H) o$ ?
<statement sequence2>;0 y; |# V$ V: C
else ( P1 a) e; s- X3 j. B6 _
<statement sequence3>;3 y7 B+ E# z+ a J! u$ T9 D' f
end;
- m: N0 x: |5 m$ A9 F如果分支比较多，用：
" W6 U7 b- Z+ d6 H: y' [/ t inspect <expression>" R4 X% f; r( x% u" s/ u; ]
when <constant_list> then4 ]7 M! B) g2 n/ N, C' ?6 L
<statement sequence1>;) M* `+ ~) ]& e/ v8 b5 ^
when <constant_list> then, V1 A! G. h) { ^) \
<statement sequence2>;9 `- ]+ Y' F2 _- ~
...2 A9 a) ]" o& |2 g
else
/ p! w$ W" I+ @+ ~9 Y <statement sequence3>;
Z2 @$ ?5 b0 \! [8 s' C* uend;# c' N7 [9 @+ t/ A* g2 I( g
' M2 J+ j& G1 y( q( a2循环语句
7 w8 q: f6 B0 \$ `2 g6 k9 s" ~ (1) from <statement sequence1>
4 X* j% D! t$ |1 i5 ?1 z until <condition> loop
% g ^' c2 I" {# V6 g <statement sequence2>;
I# v! J! Y1 |6 \2 e! [ end;4 {: j$ {( l9 V) |' s/ z4 w
(2) while <condition> loop
, }8 v! }* w4 w, w$ l <statement sequence1>;
" [ |' G5 X8 \ end;
7 K2 B* p4 v6 j (3) repeat
4 o9 b" \4 D: \1 s) S2 `6 [ <statement sequence1>;% f+ P. t0 v$ X$ q7 q3 z# E
until <condition>;/ }3 R2 C; R/ ?, x4 O+ `$ ?
(4) for <condition> to <condition> loop
2 k7 n# q* U. |) e <statement sequence1>;$ \: n2 u" R5 }% K7 V0 e
next;1 z# x3 @* `3 T; ]( I ^6 P" y& S
3中断语句
+ x# A* B6 u6 b P1 S waituntil <condition> prio <integer expression>;
/ L; o. A j3 e( e# \ s& v6 h1 ^' S% }& Y
) l9 `$ y$ y k
以上为常用的函数！
# a/ Z" K. L8 W还有很多，如有需要我把资料发到你邮箱里
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