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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0 Z3 Y+ J* x2 z3 x
if <condition> then. j& v8 R8 _) ^( {
<statement sequence1>;
9 ?, B9 |) g7 T1 k3 Y elseif <condition> then4 B9 t3 P0 C/ a }
<statement sequence2>;
+ B7 C7 ]# x! Q2 y( q$ a else
- M" d; z( m) f q' u3 C/ \% \0 B <statement sequence3>;
/ `: B" B4 v2 H, X" h. c# u end;
$ N( c, r; q/ ?8 k. ?如果分支比较多，用：0 [: \: |- n- u7 p& {
inspect <expression>& H2 u9 L& C z) K4 j2 b L
when <constant_list> then2 `: A# s* A& r7 z0 {
<statement sequence1>;
/ r" s. E2 e: z5 p: ~* g; h% y1 f( l; c when <constant_list> then* y+ m# h2 ^" d, T; A) d0 ?3 f
<statement sequence2>;
/ ?- D' o8 e8 I7 n ...
) K: `& D: Y5 i6 D else' M" D7 V s- Y9 e* { g! T5 i
<statement sequence3>;
0 q l( H% f1 C& r6 yend;
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2循环语句
1 F3 ?+ ^3 m. P (1) from <statement sequence1>- u1 `' [5 l6 g: m0 F9 J
until <condition> loop. I5 _& ^/ l. U4 X7 s' L
<statement sequence2>;
9 o1 `. F; @7 a% A7 H# h end;/ m8 V, h6 e( W d6 h" v0 ]) a
(2) while <condition> loop S0 S3 ^; g2 t; g2 E, x
<statement sequence1>; L9 M/ x B5 O: d/ X2 f' b8 ~
end; |; I, b5 d2 w2 y( b5 V7 h" C
(3) repeat
s7 |1 L; N. k3 U4 H# @0 | <statement sequence1>;7 u% _ c J3 j- p3 d8 M
until <condition>;9 X8 Z. r4 Z+ ]- k! m6 D
(4) for <condition> to <condition> loop5 c0 t0 _) _" x7 ? t% L$ Q
<statement sequence1>;
9 z) {* A/ T- h+ ?( M next;' p, i. E( a$ a! _' m
3中断语句, \( `, T3 `" {0 N
waituntil <condition> prio <integer expression>;$ h; K; ]6 \3 S: v4 U$ \
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& {) R& ]4 u2 L/ o+ N以上为常用的函数！* ]; C4 m5 @0 |' o/ `3 H6 B- s
还有很多，如有需要我把资料发到你邮箱里 " S% O9 S! }# ]5 ?: M
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