|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句4 n7 _3 p \8 g" k2 d
if <condition> then
* j7 L$ `* K+ a- C; n) B <statement sequence1>;1 X, n a+ _9 d' F: Q1 X8 i
elseif <condition> then
1 v, U0 E3 ?4 L8 n. s* @# t# R& ~ <statement sequence2>;6 V4 x9 u2 J& u( A& t5 B0 X4 f
else 9 b% w7 S$ H$ f2 Z4 |8 Z% ~4 j
<statement sequence3>;
) ]. X, j b6 D( e end;0 y( |5 m7 N6 f' |7 z
如果分支比较多，用：
" o* i8 [" M! Y$ k8 d7 G inspect <expression>
3 \5 |0 B" M( v. A8 {+ A$ J when <constant_list> then
$ N, `6 c! A7 ?; g <statement sequence1>;
3 R7 F8 M% y" u when <constant_list> then
' M4 T, O* m$ j8 u8 i2 N3 p <statement sequence2>;0 G7 b3 S$ Q* W0 J* ^0 P J
...
8 m6 d& I) F3 c, ^ else! ~/ w4 R5 K! u( ^+ ]
<statement sequence3>;- b' o% Q% S$ ?+ w' M( w
end;% M& ?/ T Z# F
; k$ U7 {0 K& O2循环语句
# a' G2 [. N, b! j (1) from <statement sequence1>! t4 P( B0 c- g
until <condition> loop9 Y, W- e, `8 W
<statement sequence2>;
9 P4 c& J! Q: \" b0 o$ M* Z6 _ end;- R+ M1 E, O+ g7 V. \
(2) while <condition> loop
" F/ }+ @. C: w* g9 g2 { <statement sequence1>;
2 e9 t3 P/ ?- b: n end;/ ^* r1 [8 E% E
(3) repeat $ `4 ^! ~# T9 }9 [ Z
<statement sequence1>;
' E2 w+ ]& d, A6 |5 y Y until <condition>;
' M [& P7 H1 \' k (4) for <condition> to <condition> loop( u6 d; H! R2 P1 Y* a8 s1 R
<statement sequence1>;8 U/ P# a0 U& P! X( G
next;
6 p2 L0 k2 X8 R! i3中断语句) B4 P' Y( z9 E4 I4 y1 P) H
waituntil <condition> prio <integer expression>;% Y. {2 h+ F m, f
, J1 u" L; b B% C8 Q/ U; X; d6 [2 _( j) S& W" t2 O
以上为常用的函数！8 y% y/ @5 [4 h, F9 Q
还有很多，如有需要我把资料发到你邮箱里
! y" R% B, O+ Y# J1 N* B& z1 S( T9 o( L" v2 Q/ y' z" `/ i
; G7 T- }$ ^& O2 \0 k4 x: i7 V% F7 F9 V4 U% m
! k) ~7 `$ t5 I9 F; h
9 s7 [& i% S* l5 {; w# b' t7 L
% g' ]1 P7 B9 X; ?& U$ B& [4 @' V8 f
: m6 c" B4 r/ c+ K6 u. f
- {) P z! @) z) ~
( [; M/ I. D/ D+ p4 V# l% P |
|
[复制链接]
