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发表于 2012-11-13 08:48:12
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1判断语句
! u. ]) \7 b4 e/ ?& \8 m' B if <condition> then
3 U; b% C1 w# }. x+ u2 z <statement sequence1>;
& J/ S4 j- U* X$ d# q" E2 M7 l% f elseif <condition> then! B2 p5 g7 y1 M1 s9 L/ P' Z
<statement sequence2>;
7 Y! p: h# B4 K7 R2 | else
" b5 L7 a1 c. \, @ R. a- E8 E3 A9 j <statement sequence3>;
3 C7 ]/ V! v4 N0 c' i end;$ l/ A$ t, F3 m$ {6 t
如果分支比较多，用：
0 I- l+ k3 v; w5 D0 _ inspect <expression>
" I& @" ?8 P4 V' v7 |: b when <constant_list> then
4 Z+ o9 r6 o* D7 j5 h <statement sequence1>;1 W. Q8 \1 v7 D$ j
when <constant_list> then+ d0 m/ B4 p3 u% g/ K: l4 ?8 I
<statement sequence2>;
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else
6 W/ Z1 B. |/ B* h2 [ <statement sequence3>;
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+ L9 C0 O/ m; @2循环语句5 O- y' i4 D: c) K" }. ^
(1) from <statement sequence1>
+ s! _9 \' @* E3 }4 b2 \ r until <condition> loop# g2 \ V! ]1 R9 ^3 F
<statement sequence2>; M! B! @6 G7 t! F0 T. V/ G
end;
( C( T( b) u* O& e" a (2) while <condition> loop) [: _3 X& _( Y! [# K# Y0 s
<statement sequence1>;
# g, F7 l! B) m3 c6 r- [5 K+ e end;
/ z- b( R2 P5 D6 M0 \3 V4 Y" Z (3) repeat 5 U- ?3 U; w _& Z3 v7 w
<statement sequence1>;4 K4 C! @& s' g0 ]
until <condition>;
7 \0 T8 O, z, s3 R, I) `" ] (4) for <condition> to <condition> loop
7 Z; ]7 G8 [: c8 x <statement sequence1>;
4 q2 ?& S6 l/ R- A+ }' m next;$ `' K, w1 F2 o
3中断语句
& H& Z9 R2 \, q' [$ G: ? waituntil <condition> prio <integer expression>;
2 Q) |: j" a. i! c" @& f; q$ w. F9 ^6 M- u/ _$ `- ^
' Y' q: s2 u& u
以上为常用的函数！
. `5 D7 h; u) o. s; Y7 g还有很多，如有需要我把资料发到你邮箱里 * M* q3 O! a- @. F% y' {
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