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发表于 2012-11-13 08:48:12
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1判断语句2 M8 }3 q" O9 s6 N" V' v' {
if <condition> then6 j! {" V3 g4 } C: O
<statement sequence1>;4 B% s- t1 q4 r
elseif <condition> then
6 q ?! x% |9 J& J) N, r$ G <statement sequence2>;
5 _ J3 H8 u3 F9 l# O+ ]- c5 m3 l% M' b else
m* f! i M2 O* ]) ? <statement sequence3>;
4 K+ A3 Z1 D2 |) w0 z end;
, r& Y# y4 e0 }7 }8 E9 V如果分支比较多，用：
- z: \. q& ^/ e8 P% _ inspect <expression>$ W8 f0 H2 ~* W- D
when <constant_list> then7 i3 x5 Q% ~* @7 y
<statement sequence1>;
+ H1 J2 A6 m6 m1 O6 h2 D when <constant_list> then7 {, l2 b2 K. v. j4 _5 [, ]# o' }" X9 _
<statement sequence2>;
5 v3 q4 U* c# P) h. n" [ ...
: O% L/ h/ f, I. n s ~; B else
0 ^ Z% f3 }8 N9 K. p: F <statement sequence3>;2 U0 W' [; b$ A3 D# h0 g: @
end;6 }. w2 @1 m4 C: k/ r y
/ i& z+ S0 {5 E% ?6 V: L2循环语句3 k6 i3 M1 V5 `$ M
(1) from <statement sequence1>6 u3 t. V# e- f0 o; j: R. x
until <condition> loop$ `9 F J% P: |4 W' L+ V
<statement sequence2>;
, o8 O) Q# \7 N# K" B' _9 e2 G end;
! c5 N# Q9 m% B- g1 ? A& t. F# ^3 Z3 C/ a (2) while <condition> loop
4 S+ q$ R$ J6 A% r <statement sequence1>;6 o0 ]# ]. Q/ b/ j; U M
end;6 @/ L* l5 X, S7 [' a
(3) repeat
, q! I3 C6 @5 {) e$ w. W$ k0 n <statement sequence1>;
' |( z G( s8 l' { until <condition>;, V2 w) n5 [7 P& r/ _! ?1 i
(4) for <condition> to <condition> loop
+ h+ [' k9 ?; A3 B <statement sequence1>;
. c) v7 K6 d% U next;$ l" ?6 g% H- }( b. E O$ U" R4 l: e
3中断语句5 O' P' l+ H) q$ D1 e6 p5 c2 V
waituntil <condition> prio <integer expression>;
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以上为常用的函数！) p1 G( i# n9 X9 ^! d
还有很多，如有需要我把资料发到你邮箱里
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