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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7 O" p H/ L9 C" _1 s8 `
if <condition> then, N u4 ~: u; ^- R
<statement sequence1>;' I/ y3 B8 E+ f# L7 A6 m
elseif <condition> then8 m) o. P+ a) _8 L; M+ G
<statement sequence2>;
7 Q8 X% ]1 G" H else
! b1 K& D6 w: o( V. \5 V( A+ J <statement sequence3>;9 f4 M/ [& ] @( f# Q
end;" E* s6 N1 c& E, S0 t9 t7 ]
如果分支比较多，用：
, Z. i; J6 U- E' t" Q7 X {: j: G inspect <expression>
- d$ E% e2 C' T8 L7 ~( B# j! h when <constant_list> then9 u7 D1 s8 O5 J: S
<statement sequence1>;, `( L" ]/ [: o- X; F3 a
when <constant_list> then
0 J, D- G2 Y7 s% i0 P <statement sequence2>;
( H( Y2 P7 H" z# p" j# ^ ...
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<statement sequence3>;
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2循环语句
3 `" J- g3 k4 @/ K3 O* N, l4 F (1) from <statement sequence1>* b& r$ v6 {, p
until <condition> loop( O; R) s" T8 n' V1 N
<statement sequence2>;
7 d2 H+ H7 }, d6 U8 l end;
8 H4 o( a; D% r2 N, C (2) while <condition> loop
( K; d( @: ?- f6 t W ~/ d: C R <statement sequence1>;
8 v# ?; i" E* q) V \1 |2 q+ j end;
$ e; Z9 Y7 ^0 w- g1 H (3) repeat ! X1 V5 S0 K+ I2 e- l4 {- g1 b
<statement sequence1>;
; o: j8 N. t+ y- J. m until <condition>;& h: S& h9 t8 i! R' ?! A; b, ]
(4) for <condition> to <condition> loop" p, R8 ?, M3 Z6 B
<statement sequence1>;
; e; r+ S7 N E" D- [6 p next;! S( |, L" H6 f/ ~% |0 Z$ A
3中断语句- c( v6 ?+ y3 D B" N% g
waituntil <condition> prio <integer expression>;
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以上为常用的函数！0 a) l: \4 \) w% l+ S
还有很多，如有需要我把资料发到你邮箱里
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