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发表于 2012-11-13 08:48:12
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1判断语句6 q R9 t9 \. A: x" x0 A
if <condition> then# g% N' } G3 @4 u( J
<statement sequence1>;8 @, v% R: O; U7 J5 m
elseif <condition> then
4 e) o: t& D6 Y <statement sequence2>;
: a' Q3 }6 K* [8 d3 h; C else
5 d- P0 W/ |( { <statement sequence3>;
+ r% ?* E$ ], ]3 f7 i end;
3 V3 H: r+ _# g& J; {( J5 ~如果分支比较多，用：" i, n* Z0 V/ l) j" c% D0 |
inspect <expression>
% v+ E: i( S8 Q when <constant_list> then* p+ n* s7 L/ x0 x( Z
<statement sequence1>;6 ^0 Z* r! \. }% j- K6 y2 f1 h
when <constant_list> then/ q$ M0 O. [; r! ~
<statement sequence2>;
; u; G- y% a( o% F" o ...
) m, e3 ?4 ]& q* w+ i% [ else
. Z4 p, x( e9 q <statement sequence3>;
( `' ]2 m+ c+ F, [& ?( aend;3 ]( ~' e2 E4 Q& ]
% q: c6 p0 x1 C S
2循环语句
7 P" D3 m4 ]4 {. P (1) from <statement sequence1>3 T0 A3 s+ }/ t5 ?' f
until <condition> loop/ j' l- `$ D$ ]! t$ C" r6 F! w
<statement sequence2>;
" F% V I. T. c: s. @" _; F. J end;
1 P" B3 Z# p- S2 q( m (2) while <condition> loop
6 D4 f; l+ M( W& d <statement sequence1>;$ B& O7 }( f% Z# t+ h: T- g
end;
! p; z @0 |5 A$ A5 H! l" `; o (3) repeat
. b; A3 L3 n+ H- e, L" K( \) T: `$ T/ d <statement sequence1>;% @7 v5 G7 o; u3 [7 q( t4 R
until <condition>;
# Y8 H& p( ~9 I (4) for <condition> to <condition> loop
7 o7 y/ {& P% ?3 [/ J9 H <statement sequence1>;, T) n+ z- W- P5 H2 G" d
next;* ~5 _ |: X+ s4 P- P! d5 W8 ^
3中断语句
6 v4 ]: m7 |8 Z3 }9 u waituntil <condition> prio <integer expression>;
* L! L! ]* n. J+ I( w% s: [2 D8 O; R2 ~/ E8 u/ p
" |9 X' J" \* N" \以上为常用的函数！! T+ ~7 H- X9 t: }
还有很多，如有需要我把资料发到你邮箱里 }5 b3 _* t* V5 k+ P' ^* ~0 v
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