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发表于 2012-11-13 08:48:12
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1判断语句
5 a: p8 n f& W* ^; v if <condition> then) Z' S4 A. d1 \% A
<statement sequence1>;
% \0 O7 S0 L" @& y elseif <condition> then
4 c Y- j+ p7 \" R" w <statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：% v9 }8 q. u& S
inspect <expression>
R" D9 \3 {" L l3 N# m. W when <constant_list> then$ Y1 j1 P6 l" z
<statement sequence1>;
" `+ q- G/ f+ h8 w( a& c when <constant_list> then7 q* @3 W! o- ?! p8 O% c! b
<statement sequence2>;! a; m& k! ? p9 r% u6 w
...
/ A9 i$ r1 a ]6 |3 ]" n& |% I else
) p7 J0 |6 ^) L9 f1 }/ B5 _2 i# ] <statement sequence3>;
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(1) from <statement sequence1>4 i+ F" v6 t! o2 V
until <condition> loop
d/ w* z$ O( h* ] <statement sequence2>;
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(2) while <condition> loop
, F! p' V; y- W6 C' L" E( q <statement sequence1>;
# |+ P) {7 ?% ~3 [ end;0 ?& K) ?2 _/ w& Y1 T3 ^* e0 Z+ j
(3) repeat
- n, k* ~5 M3 M) r <statement sequence1>;! X/ |2 I9 }' y h$ k/ V0 j
until <condition>;5 C8 c1 b; i% P I4 O
(4) for <condition> to <condition> loop
+ V" n4 a- h( K$ C S0 Q {, k$ G <statement sequence1>; r2 w5 S& }/ H
next;
: {- N' J* G0 l3中断语句
# j3 ?7 z7 t8 I+ C4 r! [" C; I waituntil <condition> prio <integer expression>;5 h! e& p0 q/ B" V/ F
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# Z5 Q7 P& b5 f+ i- v+ K* ~7 Q9 R以上为常用的函数！
, X2 S2 ~& n7 l! r3 y" Y还有很多，如有需要我把资料发到你邮箱里 5 G2 C* M( G: N( e, X5 i0 d! K
+ U9 E& x; |4 O! ?
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