|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
7 U/ e6 d+ l6 ?1 a; ^8 { if <condition> then
7 @7 c1 O, |0 d3 c/ Q& t9 h+ ~. @# X" L5 N <statement sequence1>;
+ v9 N' F) v7 b9 {( A, D$ z: O elseif <condition> then7 B- N# Z' r8 z) Z/ n
<statement sequence2>;! Y0 r+ O t( Z, c. P
else
2 b0 I# Q2 c9 f: N6 C6 F <statement sequence3>;
- H+ {* e- h( a1 z end;
4 x1 |; `! b7 A) s0 Q- f7 L如果分支比较多，用：- T! m# r6 F9 K7 n* J
inspect <expression>
) c1 _. [! D0 H5 d J, V7 g v when <constant_list> then
/ ]' e6 G- {: |$ b( O2 N <statement sequence1>;
3 W' ~& `0 a3 }; D1 w, | when <constant_list> then
4 V6 |$ F. p8 g6 U! H <statement sequence2>;, H$ ]) a7 y, i: \
...
, ~4 o& U. q/ v/ X" C! I. {9 U3 i" T& V else/ N: p7 G7 [. j' k6 P" S
<statement sequence3>; u! V2 H- f$ Z% W+ t$ u2 A
end;
3 s2 R5 C- k8 t# e- F$ k- p" G" @8 M. E2 I
2循环语句: p2 m, g7 F) G I
(1) from <statement sequence1>
8 S7 L P( A6 y+ Z4 K; u until <condition> loop
% A( `8 o1 c W1 c4 C" G6 L <statement sequence2>;
9 w- b( w" n8 l, O5 Z( ^ end;
! N0 `: H0 L2 Y+ Y. h (2) while <condition> loop- D7 k0 m7 Q) O
<statement sequence1>;
5 R) T! `# `+ I! _ d end;* g4 ]- [9 S# D) ]! I- T
(3) repeat
& e+ B: f+ s( d8 z/ N <statement sequence1>;
0 I- v8 e+ D8 |) R. @, F until <condition>;2 T0 K+ Z7 q3 e1 t$ Y' I% F5 H9 _
(4) for <condition> to <condition> loop
h C9 \/ G1 D, A1 R' r( Y, w( Q <statement sequence1>;. v$ [; C1 [7 L! U# H% z$ b
next;
4 O% |9 z, {4 R" T. D9 `5 ^. F3中断语句/ Y3 A9 x" m0 r( ^! |. M6 [ O' [
waituntil <condition> prio <integer expression>;
( ]0 Q7 i& H7 r5 Z8 Z+ y& ~+ q4 C4 p
0 z+ `( T% t1 V/ n8 y" y/ i
以上为常用的函数！
* @. F/ I8 E0 S- e还有很多，如有需要我把资料发到你邮箱里 0 z& w1 i) S. g3 y0 s, G
1 g* b: f/ J ~: P( s" I: @( ]
. g. F! @5 B* Z* H
& l/ q5 `* q5 a2 J
7 h6 l2 h2 ]$ R% M# K
2 K* h! L9 {. d5 l1 M/ x; i
, b% J$ l l) u6 `9 |) k) S
% ^5 G3 \: w; F$ l' n& C2 n! R+ ]5 f, a
+ d0 S+ I$ Y+ V
& w8 i$ x' Z# A( Q6 @# t& | |
|
[复制链接]
