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发表于 2012-11-13 08:48:12
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1判断语句: g( T8 S1 }3 S8 B5 x& C* M
if <condition> then. u d: q% o& x3 X+ m) Q# _
<statement sequence1>;
& ]6 o+ O0 a! }& \2 j' P" D elseif <condition> then
# | ~2 `0 S6 \! h. D4 V" R7 V9 G <statement sequence2>;1 W4 E: U4 O+ ^) T r
else
& u4 I3 l: |) H2 o$ A <statement sequence3>;" t) e- e; I3 k" u
end;
$ K0 K4 l7 M: {1 U% `/ u' S* ~如果分支比较多，用：
. `, {$ ]2 [8 ~$ ~9 i inspect <expression>
5 h- J& `* F" L; k3 s when <constant_list> then( ?2 W* X+ z" F$ J: E: S- r
<statement sequence1>;% G( W \& ?; d7 Q) f! w& D
when <constant_list> then+ u F' ]; a4 v* p$ Y
<statement sequence2>;
/ e* d, R) A- ^2 T0 b ...
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<statement sequence3>;
: K5 g* f: `6 B. qend;
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# m* z/ Y! F2 t$ k* i- | A" L$ K2循环语句" V+ Y9 P, |/ o) ^3 [
(1) from <statement sequence1>
5 s' C' h/ u3 M until <condition> loop! D8 L3 B; R- l+ L
<statement sequence2>;
8 m }+ \" ~! J1 Y end;
! y* n. D4 ?9 N( g (2) while <condition> loop. z8 P+ J5 f- q
<statement sequence1>;
5 r! b, c, ]4 N+ i# Z- v end;/ l% R# }6 v4 d: t2 `9 i
(3) repeat ; C. R% \; F- g% r( u* G
<statement sequence1>;
9 C6 M( ~; g+ s( k. c8 g! i4 R0 d7 Y until <condition>;, h( O) }) p- \( G: d/ y8 i
(4) for <condition> to <condition> loop/ j+ b: J4 Q5 w8 Y* I7 P
<statement sequence1>;7 ~& ~! E2 t4 k
next;
9 L$ R0 \! C0 ^5 c2 H+ B1 }/ y8 _- H$ Z3中断语句
! {: z: e l0 g% r/ ` waituntil <condition> prio <integer expression>;3 J- k3 J U4 @5 }2 K
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以上为常用的函数！4 Z9 l i% n6 r% T
还有很多，如有需要我把资料发到你邮箱里 & G1 V# f: a3 j7 J* g+ i
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