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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
# O! g" r/ c% ]1 t9 s if <condition> then
; i% S# }; b: |2 P5 N! R9 P+ @ <statement sequence1>;+ C2 J& Q3 O/ Y$ u) M
elseif <condition> then
. x& V. M6 S! C3 U! Y <statement sequence2>;3 I# w( n4 j' H3 g+ {, q# |4 e" d
else 3 p+ w' ]9 h) S; K0 s$ a4 R4 h0 B. T
<statement sequence3>;$ U# X8 t# u% h r/ o, E- D
end;2 Z6 D0 h7 e5 e* |% \, [2 C
如果分支比较多，用：$ Q1 c* n, c( n7 v+ S
inspect <expression>
8 q1 k& e7 D1 [, N6 l3 J& R1 \% l. R when <constant_list> then
- N( x; L- H4 o% L1 _, g <statement sequence1>;6 Q3 t+ }& W5 Z/ _
when <constant_list> then
5 W. [, f, {4 i* n, E. ~$ _$ ^ <statement sequence2>;
) b" m( P, `# Y+ p% H4 M b5 H9 O, M; B ...
7 C% ?' i7 R' R8 e+ f else! C1 _ a: i5 R0 S6 e; L ]5 E
<statement sequence3>;
r" X( I: E! a( {end; F/ Z* M( ]( j5 q. d6 e# @
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2循环语句
( m7 [) e3 p$ l% k" z3 k (1) from <statement sequence1>
' ^. D% B2 w) O" ], N until <condition> loop
9 `- A8 P Q. n* U <statement sequence2>;
! ^; y0 l5 W) D/ e4 y end;
8 `# u: \3 n1 m4 \ (2) while <condition> loop
% r; ?6 }7 W; _8 c# U1 U, ` <statement sequence1>;
/ x' {6 L M" S/ J. k, B) b/ w- z# i end;
8 e" t: [) t' e2 c4 [ E1 m, t/ Q (3) repeat
) t1 \, h9 s/ b <statement sequence1>;
$ ^0 g% C' T7 f8 ^: f1 u until <condition>;
5 p+ m! [. R7 x g1 g# y (4) for <condition> to <condition> loop
3 |& K! v+ }8 E! y' p' G& X <statement sequence1>;
, l2 }' H9 g9 b2 i; @, S+ h. I next;# g7 P m2 _& X/ Z) C1 Z
3中断语句4 e6 D! Y4 r1 P O. f5 ^% D4 F
waituntil <condition> prio <integer expression>;. f2 S0 B+ M! R# y1 w ^0 I
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以上为常用的函数！
* r; B! M+ k& |* L" g, C还有很多，如有需要我把资料发到你邮箱里 # d& K: J- H+ C9 V- J* `
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