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发表于 2012-11-13 08:48:12
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1判断语句
! D4 _7 }* s: E* r4 z if <condition> then! j9 m; X* Q2 t0 q% |- p
<statement sequence1>;/ F( ?6 @# K! ^0 s h3 k
elseif <condition> then
4 C5 ~ z% m* I- P8 }5 z# x <statement sequence2>;
' [) O L" F$ D e; M else
1 e! H6 `. C- A+ {- o! O! a+ s) B9 F7 [ <statement sequence3>; Z$ B* Y' D( ^( D& }
end;
x/ i0 z. n) o* l; ]2 i如果分支比较多，用：: B. `. ?( f8 F4 G
inspect <expression>
. ~% [1 i: X: W% |5 C" A when <constant_list> then# w! Q/ w- d5 [- ^# T% F) y
<statement sequence1>;
" p. ?9 ~1 k' |( Z8 j y when <constant_list> then
# s6 x0 w& B6 G3 v3 h U6 t3 f/ r <statement sequence2>;8 T5 ~7 q6 J% K( `
...% O. f8 ^+ O# f+ C
else5 D% M- }5 ]' U" }! O, \% V
<statement sequence3>;5 R' Q4 x4 b# |: X$ x; u0 Y+ @
end;- r* t. Y. J! q
! Q/ E/ Y8 @ D, e/ [/ C. ~' |( e2循环语句$ [$ S; A. w {) `8 {% ]) ?
(1) from <statement sequence1>
9 k" n) C% [6 I; E8 a until <condition> loop d& y3 ~' @3 Z' j& W% P+ {
<statement sequence2>;
- g# E5 A! i. N1 i+ ~" s end;
3 ~: \, Z: O0 b3 ]! p; [ (2) while <condition> loop) H. {# `. Z' i6 d2 b
<statement sequence1>;2 Y# v& V1 S3 M! v& Q" U
end;* o; [; c/ r: U+ v
(3) repeat ; z$ W) Y. b1 n6 j4 a3 E* {
<statement sequence1>;, j' ]' m9 e. i
until <condition>;
- w- w& y! A2 j P" d (4) for <condition> to <condition> loop6 S9 T" N5 ~* [: a. s! f+ i+ d
<statement sequence1>;
6 W# _/ L C: H# F6 o2 g next;: ]) K5 ~% Y( z, J
3中断语句2 [7 X8 p# ^) Z$ Y$ l! h: h4 }
waituntil <condition> prio <integer expression>;' q8 S; H6 Z" R$ e1 u
; }% p8 Z, Q# ?, M( m
3 @+ N6 I: m$ _ l8 I w以上为常用的函数！ U& j6 r2 e" t
还有很多，如有需要我把资料发到你邮箱里 # A! y% T3 Y* B+ ], e
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