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发表于 2012-11-13 08:48:12
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1判断语句% Y& v, V9 C" X2 b/ Z6 }( u
if <condition> then5 q3 F x" j! R, b/ v
<statement sequence1>;. z. t. d- q, e
elseif <condition> then* P1 u$ K0 x8 Q8 t
<statement sequence2>;9 K. U0 ^: u% |, \1 W6 F9 p
else
|; V$ J* E4 j7 \+ M# Q4 J <statement sequence3>;
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如果分支比较多，用：
! `' F. d* U% T* t1 W0 t, ^ inspect <expression>. O2 H9 j3 ?$ ]* t# E
when <constant_list> then
1 E4 C) ]0 G8 S/ | <statement sequence1>;
" p7 b% O. A" _% F- L0 U& f5 N when <constant_list> then u2 ^) w% P" I @- h1 r
<statement sequence2>;
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else7 \" k3 z" a1 z# B. {/ C$ l; r! n
<statement sequence3>;
- Q& d8 U" I0 t8 Rend;$ Q* L1 V) ^) D% u0 q- E$ T" x
2 X( P( _% ^; K2循环语句) V3 Y9 B8 }0 X5 X, j
(1) from <statement sequence1>
# N% @. g% p, ?7 {6 W* i until <condition> loop Y9 m0 M2 {; p& N9 @4 V% |) `
<statement sequence2>;, a* s$ H. p" v; X
end;
, j* x8 m9 F& a) o7 O' Q (2) while <condition> loop: M- e( j4 [' V6 g3 q* n( R
<statement sequence1>;: F& o6 @' T0 S. v1 @: Y
end;
$ T2 `: p0 a6 ?, Y# U9 s9 ^ (3) repeat : P+ d. N9 o* Y' E+ N, z
<statement sequence1>;
$ @6 V5 B( V5 M8 G7 j: K until <condition>;
7 {" B, ?1 o% c& N) T; P (4) for <condition> to <condition> loop8 j( z# O. [! w/ d
<statement sequence1>;
; R1 i d1 z% n" {' Q& Z6 G next;
1 g2 g! ]! ]4 ~9 s* d p) g3 j3中断语句! A' o0 `& o: @4 \0 X2 m0 `
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
5 o) I' v5 H# F1 H; q. `- J1 G还有很多，如有需要我把资料发到你邮箱里 7 ^7 l( J/ z0 L/ H7 ]
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