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发表于 2012-11-13 08:48:12
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1判断语句! q6 `- l$ E3 G, A9 k, o2 S& N
if <condition> then
! }, }0 L& p) V8 }9 R) D0 G0 u <statement sequence1>;
" u- F6 ~4 O9 c3 c; B elseif <condition> then" U0 R0 d6 I/ [5 Q4 _; g
<statement sequence2>;# S; T' _9 u! c. z4 W
else . A& E. A" w; P+ _
<statement sequence3>;
2 P0 s5 Y) }$ b" j. \ end;
0 u/ W R2 [- z# N- Q如果分支比较多，用：4 w' k+ q f7 K3 H
inspect <expression>
8 O1 K: g# w8 Y when <constant_list> then5 Y4 [3 U4 }8 X" E
<statement sequence1>;& i8 c: M3 U5 j* X2 c9 m
when <constant_list> then
" \/ N! ~ \. m( ] <statement sequence2>;
" C; _& f0 j- k& s" P ...
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<statement sequence3>;0 |2 N1 x& B: t8 M. K: W
end;3 }: t! `# A+ r0 C- H
* u! g3 c1 O$ h5 I! ~- `2循环语句
& @8 V b/ x" G (1) from <statement sequence1>
, e) _* M& e {( J0 Q& Q until <condition> loop
! o0 g1 l! r0 E" F+ S" }0 P <statement sequence2>;" J8 [3 R" N& t. X
end;: G8 x- F6 p* @$ ?9 o
(2) while <condition> loop
+ z' \5 G- D/ Y6 p+ \, O <statement sequence1>;
) O$ x$ m) k( J- R8 H end;
# f9 e8 x; W w! C: G$ o! @: ~1 W (3) repeat $ w; v' z' j( g6 N, [
<statement sequence1>;
- [ v: u8 b4 X! X9 { until <condition>;
3 N+ \" M) W' ^ S7 [ (4) for <condition> to <condition> loop
4 @+ p. K; q4 G$ g <statement sequence1>;8 y& W* A0 l8 d. X' y
next;
& i% c. u" b& G1 l& s; U0 }* t3中断语句: h% s: F7 p' ?2 O
waituntil <condition> prio <integer expression>;4 V$ [2 l' t0 U% l
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以上为常用的函数！ a' h+ G1 H' a1 n- X
还有很多，如有需要我把资料发到你邮箱里
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