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发表于 2012-11-13 08:48:12
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1判断语句
9 c0 O" e$ k8 F$ M) r* i if <condition> then
+ Q9 B, C8 t' V% ]! j0 x <statement sequence1>;
5 ?& p* o2 G$ s elseif <condition> then; n' H# I0 u' o5 ^( g. I E% N) p
<statement sequence2>;
& ]9 Y5 X) \5 p' I2 o/ X: L! f9 S5 u else
2 d+ ]$ [6 u/ h( [) Q I% H5 E <statement sequence3>;% {! K }; u) l
end;# r3 [% j2 H+ r9 E- C' L
如果分支比较多，用：
% g+ V: E" C$ q& P. B. l/ Q inspect <expression>
9 B5 K. S- ~* K8 S% Z. n when <constant_list> then
0 n" o% }2 Q& E, _! G& ^ <statement sequence1>;
9 {( d$ V# n( B when <constant_list> then
) y7 K. \2 k$ [5 D) |; L9 w1 ] <statement sequence2>;
* z0 ?! V7 V3 ~$ U ...! i; s9 M' h8 T" U8 J
else
+ v" k! U# n9 i( x" _, L* |8 e% l <statement sequence3>;
. Z& ~ U9 }! w, K( J) qend;
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2循环语句( O: X+ W" S8 L9 o' D4 }# j
(1) from <statement sequence1>
$ V* W! F4 i6 [ W$ T until <condition> loop
" q; L+ _# X, W& ]( E* C4 V <statement sequence2>;
0 y2 V P, J+ J+ E9 k end;
: L; J+ G% O6 \1 [* |7 U9 R (2) while <condition> loop( s( M5 U2 ^+ g; }* v
<statement sequence1>;
( Q" |& v* c, u7 R$ E% q end;
4 q1 u) s ^$ B6 a# W4 a" } (3) repeat
; W# s5 g$ k! K G3 q {. J <statement sequence1>;
& A2 p; S' I7 _% b' o) R" } until <condition>;
. b3 J" A1 B$ V c (4) for <condition> to <condition> loop3 a" E, E G+ _0 f* p; j% z( F
<statement sequence1>;
( s! `. R( c1 g! Q8 y% c3 @6 q, Z next;2 g% C3 h. L5 }* Q, B
3中断语句
( ]# W: L$ ]( @& s) y0 Y waituntil <condition> prio <integer expression>;
! D5 g9 d5 J! }- r V8 M# @7 O1 ]* s. K
& @0 h" B6 g- Y2 `! \) q7 X& z以上为常用的函数！, g u! p, ]$ ^( t7 }
还有很多，如有需要我把资料发到你邮箱里
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