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发表于 2012-11-13 08:48:12
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1判断语句% [, C/ w( S4 S4 b( C( \, s
if <condition> then
l i8 K0 F' Q! u) T <statement sequence1>;
1 r& p* W+ z9 M# O# p. M* } j# P elseif <condition> then
! B6 F1 z. q8 `% c+ \ <statement sequence2>;7 I' \% @ X) G6 n: {# @( N1 t
else
+ [% ~; {/ r& |6 C% o1 Q1 g <statement sequence3>;
. \7 p2 h% R4 S end;
! @: E% _' ]5 o* t4 J9 P" Q: C如果分支比较多，用：, ]6 P0 ]$ W* X
inspect <expression>
; Z: d& \9 N! m# ~) e3 b: A when <constant_list> then
8 u( w* C3 d% R <statement sequence1>;
/ b0 W9 R2 A, R1 o when <constant_list> then
8 v* H! O5 I- s8 G <statement sequence2>;
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else! I/ M3 {# s) b6 o- H
<statement sequence3>;
/ I. M7 y4 {9 lend;
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9 O$ k6 b" k9 f O, k" R- o2循环语句* b# b* t3 R/ A. {! u
(1) from <statement sequence1>
' c* u9 b; @5 v& o$ `6 [ until <condition> loop" I$ N# R% f2 |! n
<statement sequence2>;
" I" H* v0 F F8 D end;- g) Q1 Q$ j A5 }$ v
(2) while <condition> loop& q4 P4 q7 C4 W) D& s1 D
<statement sequence1>;& {: s) J. t: n+ B
end;$ K4 \! Q0 ^0 D7 n3 U8 c6 F
(3) repeat
% f$ @! R. E( y2 _2 H <statement sequence1>;* `1 l$ q& d) T7 }( K+ S
until <condition>;. r/ p/ C. _, H. p+ c
(4) for <condition> to <condition> loop
0 T6 ?6 q1 A2 k <statement sequence1>;
4 v% ~, F1 f$ F next;9 ]6 x8 e6 D% b$ W
3中断语句5 v! f' x, a3 o1 W7 `
waituntil <condition> prio <integer expression>;
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' A1 ?! _1 ~+ @8 i: ?" f4 _2 S* r+ T以上为常用的函数！
# C% t/ u* d$ i7 N" [还有很多，如有需要我把资料发到你邮箱里 ) O- I0 {) x {8 n/ Q
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