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发表于 2012-11-13 08:48:12
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1判断语句- w7 o# I' l- C1 J% d. O
if <condition> then+ ^+ Q% }! a5 a
<statement sequence1>;% l: `: s/ T+ ^" P5 _. _+ m+ j3 @
elseif <condition> then. K7 }$ i5 @9 o6 V' y2 Y$ d* J9 H* r- s
<statement sequence2>;$ Q o6 _4 e) u% [8 ~ ]0 T
else
: V% \9 V7 }& M+ M7 a7 [ <statement sequence3>;. H Q0 x9 @- h! z2 h& S( Q. V
end;
: |$ n2 M: }4 L如果分支比较多，用：
# _; t* B* X* n# |# L7 |+ z inspect <expression>
8 J0 w, i) X. p) O when <constant_list> then s/ L5 R' I4 K3 j. I2 B' q% e
<statement sequence1>;* n& @0 o" K! p* x3 n
when <constant_list> then
* N0 w2 A2 l0 Y' v <statement sequence2>;6 f: p' X6 i! [' ?: M3 G/ i7 _; x
...
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<statement sequence3>;
" \9 M/ c+ k- g: c. f+ send;, S$ b6 o3 y7 X8 D8 J% R8 }
. f( `/ x* W2 K8 E$ p" L2循环语句
O$ J% t9 i0 U- C9 S7 V+ T! z1 T (1) from <statement sequence1>
9 x9 H! C& g( r, f) C until <condition> loop
0 \3 g/ @; Y9 r( U2 T <statement sequence2>;
# o9 |9 X8 t* B9 E) x8 v end;$ v' Z4 [( j A- N: L# R$ y' O' R
(2) while <condition> loop6 y% P6 v7 q: E# H" O
<statement sequence1>;
7 G- J0 C! C% ~0 h( K end;
( i# |1 `1 p {' r- x9 } (3) repeat
2 A) s Y/ j% ~; ` <statement sequence1>;
/ g, K1 V( k# r* l6 s until <condition>;
3 y% F$ N9 {1 H! C! Y (4) for <condition> to <condition> loop h) m! b1 W/ W7 Y! }
<statement sequence1>;8 `, p* d: W* O+ K+ E' Y, Z0 ?
next;
' q* D6 ~: e& B3中断语句5 f$ o1 J0 C. C* w' X
waituntil <condition> prio <integer expression>;
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0 @- P& W0 Z3 e0 s$ ^; t: T/ g. i1 V7 f# u& x) r
以上为常用的函数！/ l6 C2 n" }7 J
还有很多，如有需要我把资料发到你邮箱里 2 ]: h& E0 f! N
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