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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& g6 j0 z+ A' l( p3 w; w e/ H
if <condition> then: s2 {. l0 i ?; B
<statement sequence1>;
- g$ |! R7 u0 _$ L: G( V' c! N8 b- r elseif <condition> then
) q! G4 n! o( k' d <statement sequence2>;
$ ~+ N- V6 T7 i, M o" R/ _ else
8 u9 g n$ |( s) Y9 _) y <statement sequence3>;
% @4 t6 h; ?5 O( J( j$ s end;- B3 N) S/ W, N2 A$ a
如果分支比较多，用：# |6 B7 A" T# \; B
inspect <expression>
% f* |' c$ z- H/ ?4 b$ \ when <constant_list> then/ z, V5 `( }! K T# _5 T0 C# j
<statement sequence1>;* M. Q/ C% ~" n8 R7 {
when <constant_list> then
0 F* ^( x, h% J3 `4 B1 L& p <statement sequence2>;) A5 v) ~9 h# S
... C( R0 z0 v6 H8 h+ o4 U
else
3 T+ O V" r3 b9 y <statement sequence3>;
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0 Z6 p$ O# g6 p" w, ?6 j2 N$ m2循环语句/ i& M( L' k, s4 b% e
(1) from <statement sequence1>
# g" }; @$ ?, [ ^. g. ]1 w. c until <condition> loop2 x( L5 V h: F% ~, @: i
<statement sequence2>;
$ @0 \) I* O) {; G" f1 i8 i end;
" U9 X- C" C6 Z& g& @( v/ W6 J* u (2) while <condition> loop% I8 B7 y5 D! D* e+ O
<statement sequence1>;
' m7 J7 I) p4 E; W& ~8 H; ] end;
1 r( ~4 O" b3 i7 A- b! H6 c (3) repeat
4 [7 L1 s$ u V) b' |8 R2 ^: H <statement sequence1>;" o, _' |9 l, J9 r% t' y. F% J# e
until <condition>;2 h* W5 @& R. z: ~6 I$ o/ t% W( @
(4) for <condition> to <condition> loop
* O: _. n. v0 |( e' L& m1 l5 u <statement sequence1>;
3 m5 N% ^" d5 y5 K; R next;( D8 u8 f$ b5 }% @* ^
3中断语句
% @' b& _$ P; v7 k4 T- k5 e3 h4 D waituntil <condition> prio <integer expression>;
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4 @6 U- G3 \4 x% a
3 e; ~6 w7 F2 e4 b8 T, G以上为常用的函数！+ Q( x; q4 V8 w0 }4 i3 C* A) i7 O
还有很多，如有需要我把资料发到你邮箱里
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