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发表于 2012-11-13 08:48:12
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1判断语句% }, z/ F6 n$ O9 H& u& _1 `
if <condition> then! L) [3 h* m. K r+ O& }
<statement sequence1>;
! b1 r0 M- `: `- i0 X' D elseif <condition> then
# v+ @' T' a& c! K <statement sequence2>;- g5 o6 t- t- H; j: X& l4 M
else
2 T7 P! e: K; ]2 N {: n! Q% N <statement sequence3>;( S8 t5 t2 U8 g
end;' D) k/ D! k" S% G1 V- o: Z0 U# J
如果分支比较多，用：/ U: M" v" ?% [; V7 w
inspect <expression>6 [) p9 }2 w2 ~1 l4 k/ ]9 @
when <constant_list> then. X/ c2 S% G& \6 c2 ]; c8 X
<statement sequence1>;. X q% I3 J3 h# R: s2 T) J+ M8 A
when <constant_list> then$ a5 H2 R3 v3 V
<statement sequence2>;
5 T4 b* u: j( K ...
" N5 {8 [& Z3 R; [ F else
3 U8 g1 `6 t! M l <statement sequence3>;; s# j& x" a$ z8 [6 m8 J
end;
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2循环语句
|. ~. S+ P( o9 T* a8 U$ B9 ] (1) from <statement sequence1># P2 M4 h* Y3 x& d5 k
until <condition> loop
( Z, K @. o. V4 k' ^* f <statement sequence2>;. }" s3 q7 c! F2 y9 l
end;- `5 N6 n- A+ Y% l- w) R
(2) while <condition> loop7 C: g+ ^' n2 u7 c
<statement sequence1>;
0 W$ S% D) ]9 h8 W end;. |9 S3 m0 p- d1 ~
(3) repeat
. G+ T% }* \6 ^% ] <statement sequence1>;. b% [" D7 k$ R2 g, o# J
until <condition>;% l* p+ a9 t) `$ [( V( j4 w; ]
(4) for <condition> to <condition> loop
1 E* G$ u. |+ m0 n8 l+ ~, K <statement sequence1>;& D7 k$ n5 ~' o9 P" d. A
next;! D$ D% y" v% m+ a3 C
3中断语句
2 W) A- H( d9 H O& k) U1 p waituntil <condition> prio <integer expression>;9 [5 Z* l' I( F( f
# d i z5 M! e$ N/ }
6 p. h! L" a/ C7 o% B0 E以上为常用的函数！
: }6 w! t: E5 x8 q# D/ U还有很多，如有需要我把资料发到你邮箱里
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