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发表于 2012-11-13 08:48:12
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1判断语句
! c/ ~2 g; Z5 k if <condition> then
- `1 p+ g) Q; [7 r& o <statement sequence1>;
3 |. ^' {& _& G ^# g elseif <condition> then2 R" x# G+ A/ z+ O: F
<statement sequence2>;
* B8 S1 s& }3 _, I else
) K; z3 Y' U. _- k8 z <statement sequence3>;
% \/ m$ B) I* h/ q; U3 l end;
& v) z7 f* }& ]* Y如果分支比较多，用：
2 w+ A1 z7 T$ I9 T) Q inspect <expression>8 B _; G5 g/ U$ g
when <constant_list> then; g% @6 v& [5 ^ f
<statement sequence1>;
( J; o) ~) J/ Q* B6 I2 V# o" U5 j" r/ e when <constant_list> then3 Y. j: K* {- w/ H9 d! G9 o
<statement sequence2>;
$ e) l1 ~% n8 F4 W4 F7 [ a, S. A$ w ...
( g. D- L7 @; k ]' ^ else+ ^/ {' l: w. @6 K+ {4 T* U
<statement sequence3>;& m$ @4 M% c3 p8 K `! ]* p
end;$ o* R% t* h6 P3 g6 Z( k& p2 W
( i' G* U9 m( E8 u; i+ [$ B3 Q2循环语句
" \! H/ h% X8 i% J& x4 w( v (1) from <statement sequence1>3 E0 p6 x5 s1 F9 N# u
until <condition> loop
4 g$ X) O* `% e& W2 |# D% U& ] <statement sequence2>;
3 F; @- l( E) c a) H end;) q I! W8 h$ ?
(2) while <condition> loop: ?. k+ A" f6 ^
<statement sequence1>;- J, C/ u/ l: D2 `2 r" L9 _
end;
$ j& D4 ]4 @+ @3 [- M (3) repeat
" j( k; c6 |- J z' b <statement sequence1>;! E! ^5 t+ ^ A1 N
until <condition>;( j. G$ U7 I9 Q8 @ V1 t0 c
(4) for <condition> to <condition> loop8 l6 @' X% M- B# ^9 D$ r
<statement sequence1>;
+ Y5 K a* ^1 V% y- P next;
6 t+ N! v$ A P7 ~' G# l3中断语句
% U; [! ^2 _0 q' N0 O waituntil <condition> prio <integer expression>;, \% r! d) K f3 A% c- S
! h" n2 N) j4 \, Q. Z; C( v0 R! J5 `; R' B! z) ], g
以上为常用的函数！
! e$ `% U. [5 { P8 i' F" U还有很多，如有需要我把资料发到你邮箱里 8 x- r6 y/ A. ~# e2 g1 E# A h
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