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发表于 2012-11-13 08:48:12
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1判断语句- L8 Y" v- B7 v- s
if <condition> then
/ W+ q* N# R/ | O <statement sequence1>;: L2 r& d0 ~" ?
elseif <condition> then
; d- d* r8 C6 e. f <statement sequence2>;
7 Y3 T: `2 J9 B else
B5 j* a$ D5 H$ Y" A <statement sequence3>;% ~# Z Y( O' X+ Q7 I) w3 d9 j, C
end;- R- y* V( ?1 E) ^
如果分支比较多，用：: Q7 }/ {6 h \
inspect <expression>
' ^2 ?" B: x$ X5 C9 z+ Y when <constant_list> then
- a6 n7 l) c/ e <statement sequence1>;
# V0 J" s4 s/ m( x( R when <constant_list> then
: S$ s/ u) B7 ~: i6 D% t G <statement sequence2>;
9 M: J& w7 L4 B2 ^/ ? ...
6 V$ z% U( o2 y1 ~ r; \ else
+ p7 y8 f% |2 O- Q <statement sequence3>;% T5 K2 S5 G. L2 l( G- y$ @
end;, C% R6 F- f% S8 r9 N4 H" G
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2循环语句; d; d% e2 P7 x& B
(1) from <statement sequence1>) s+ o. Z) N9 H" m w' _
until <condition> loop
" g" H, R! ~, {/ Q& v9 ^( L <statement sequence2>;; ?* S1 @) @, o1 u: b. I: |
end;
; h* [0 E2 n5 i1 X/ o" D (2) while <condition> loop: k/ t) F, u. ?* r! X. h5 Q( e# ^2 o/ ~
<statement sequence1>;( \. y9 \0 T8 C5 ?
end;
) \: d+ u1 Y5 l (3) repeat
( J( r/ u3 c" t5 T3 \6 P <statement sequence1>;
, Q! s& `( {/ }2 f% B until <condition>;
% v+ i% z L. }: H; C* C5 n (4) for <condition> to <condition> loop
6 \4 y. |0 Z- E( I: z2 }! x <statement sequence1>;% j+ ~6 }' M( U# }, P) _
next;5 M7 e* j5 \# X. e$ a$ C$ h
3中断语句, \, T* E, L3 z$ R6 I9 `2 }8 N6 \
waituntil <condition> prio <integer expression>;
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8 k( h" E, D/ O5 o% w+ c
以上为常用的函数！
2 h0 e8 {+ A4 A; k6 n6 [- T还有很多，如有需要我把资料发到你邮箱里
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