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发表于 2012-11-13 08:48:12
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1判断语句
* e C- ~4 m" k/ j if <condition> then s+ G( c* k% Z& \
<statement sequence1>;
- R* n: ~ i6 j6 G elseif <condition> then
. H" q$ W. {, U2 m/ Y <statement sequence2>;
, @! o3 G& x. N d: |; y S. o) \ else 0 n: w, i- D+ V- c
<statement sequence3>;
# W& M2 H9 s- ?2 G5 W# T/ n; u end;1 V% C8 q- a; _0 h3 ?& k
如果分支比较多，用：
1 u0 ~0 z/ F3 |" @% }5 F4 ^# X4 M5 r f inspect <expression>
- B8 A+ o i% Q. T: T% u# A- ^ when <constant_list> then
2 v" K9 |* y7 U1 I/ A <statement sequence1>;
" r/ R$ h% L8 V: N/ D when <constant_list> then1 Q% |1 v: M0 L
<statement sequence2>;- j1 ?: B G0 r0 Y* }! J
...
# m( x8 f& q+ ^ else
! k0 O; r7 L3 D0 }0 e, v <statement sequence3>;) f O* ^& o* I9 e: N! p
end;7 y9 Z; k: B Q
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2循环语句
9 {9 }) g2 \3 G( G' k! \ (1) from <statement sequence1>
# q) |4 L# S* {. b& b( ? until <condition> loop
1 a/ U0 ^8 N; g/ g' h K' l- Q <statement sequence2>;. B6 N; t! {7 w! c8 w8 e# U; q
end;7 j- V) `1 M! x# j
(2) while <condition> loop. x; o) a8 V# ?# T& P$ c
<statement sequence1>;
" ?6 W9 C* ]1 W. |$ `9 S' M end;
- e9 ]# t( T. ^ (3) repeat
2 J |+ x3 ^5 z4 S# Y <statement sequence1>;3 J. A9 |! ^$ [* n! d5 s9 V
until <condition>;
. M; K0 d3 o! w (4) for <condition> to <condition> loop
5 L- F1 C. c/ b. W+ t5 m: e$ V <statement sequence1>;
8 j: j3 O4 j& l9 y6 O next;- t. _0 g* t) r: K& Q
3中断语句; A; }5 n4 @) _8 K2 R. @
waituntil <condition> prio <integer expression>;
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; u9 Y% y1 l4 A# ~5 M" w以上为常用的函数！$ A7 t0 z! z/ U1 {3 t; c
还有很多，如有需要我把资料发到你邮箱里 : Q L- ?, s5 N9 v0 y( q" m9 F
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d* B3 y1 a. i; I0 ? h& ?
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