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发表于 2012-11-13 08:48:12
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1判断语句# G7 J1 O4 O( S7 N0 g2 l/ F
if <condition> then& q1 n$ q* j7 L8 W1 a
<statement sequence1>;
3 ?2 S. u$ @8 P8 Q8 r6 d ` elseif <condition> then
7 A7 Y' E5 e3 S0 i" p% U1 z, V <statement sequence2>;* f$ H1 S7 ?# c$ ~/ Y" ]6 \
else 6 Y% t9 [5 |9 d: j5 b( N
<statement sequence3>;1 M. }# s9 _/ j$ F
end;
" g0 p/ P- [9 |2 X1 N8 M如果分支比较多，用：
" V B9 G0 g! s6 L! S! J8 w3 D inspect <expression>0 ~' y5 ?7 S2 s2 K1 R
when <constant_list> then
% U& r8 E0 W5 e: D7 |* D( X- | <statement sequence1>;# ^. O j% Y8 V D
when <constant_list> then
9 U; S& V" B% { H: Q <statement sequence2>;
: q% f+ r: g0 }: W ...
9 c2 t& R; t! R. \* \4 Q else
& h4 p% ~' Y. v7 e <statement sequence3>;8 w0 R; ~) ?: H
end;7 m7 L- z+ U+ U# w! X& z
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2循环语句4 {6 n* C# |; I
(1) from <statement sequence1>
. t3 V& c3 f# H4 J until <condition> loop* R+ c; N- H& B9 q7 G8 O
<statement sequence2>;
7 T8 `7 u' | U1 C7 B+ s; Y end;
* }- @4 \3 K* E$ l( N (2) while <condition> loop- S. w' R1 i+ w6 `) F. i% }7 b
<statement sequence1>;" o+ Y9 c E3 f3 p
end;% V W6 r9 L0 I# a& X4 O
(3) repeat
9 A! K. ]3 [( a8 ~& k& Q. @ <statement sequence1>;
* W; N+ k7 u9 \( f! S" {) T until <condition>;5 |$ o5 U7 y( O, j+ Q# Z" s, P
(4) for <condition> to <condition> loop- z3 g2 N" l5 U% d
<statement sequence1>;
0 E' |" A! E4 _3 z next;8 y% s8 M/ ]6 P: W
3中断语句; @! M# \$ [4 d: B4 y Q% Y
waituntil <condition> prio <integer expression>;
* {1 e( N0 L0 b9 l1 K# |" ~+ R0 M0 ^& J, k
# U# Q7 n, `: k) m9 f H# a' p以上为常用的函数！9 F, A6 {* \$ w) r- ], B) ~
还有很多，如有需要我把资料发到你邮箱里 : `( a; N5 _7 [$ M' v5 D: ~
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