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发表于 2012-11-13 08:48:12
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1判断语句
5 Z3 E" w" S. j/ _ if <condition> then
( F0 n Y( `3 t0 n) I9 v+ ~+ b <statement sequence1>;
- u# ]4 Z! y: F3 b p" D elseif <condition> then
: p) l. A# i6 l: _! M/ [% H <statement sequence2>;
8 G( ^' L y; g else
& w7 k+ ^& d) X <statement sequence3>;
3 P- G7 F1 J$ p6 E end;: Q) B3 P9 m( A. A* S: A A8 t
如果分支比较多，用：( l" K5 \' Z5 X( {) r+ Y) {4 [: D7 x
inspect <expression>
' J+ V; D' `% x! F when <constant_list> then
0 U7 O6 V9 K1 g; h& p <statement sequence1>;
e, }& {( ]5 b when <constant_list> then/ P/ o7 b& ]6 `. ~% m! n4 D
<statement sequence2>;( ?# L: q* ~+ I
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else
* _' r- D# M2 [/ N4 e <statement sequence3>;
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% B: b" M8 l. u2循环语句
$ o! M2 L5 R; b: ]: c2 a! f (1) from <statement sequence1>, C# |9 L/ |, k
until <condition> loop! ^+ T- D* z; m8 w
<statement sequence2>;
# K7 a' _! L' F1 U2 G3 Z2 P, L end;
: n7 ?2 Y6 [* r/ b' I (2) while <condition> loop9 E) p8 g9 ?/ N- l5 B1 v( C
<statement sequence1>;
. G1 O# x' R' Q$ V. {4 Q; m# E0 w end;4 p" b6 w7 p# X
(3) repeat
. k, N0 Z- R! s1 t( T <statement sequence1>;
. y3 D' d {* e2 Q+ K until <condition>;
: B; W% `& E$ U/ t (4) for <condition> to <condition> loop( {7 Q: z1 \2 F! C2 J' o
<statement sequence1>;1 j @4 N# X+ \; m
next;) |$ ^' X4 h0 @ O( r! n4 B0 Q' `! Z
3中断语句
" o# m3 c1 n d6 R% \4 U waituntil <condition> prio <integer expression>;( |2 t' M$ U2 z* S6 ^' i
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) Y# ? b4 K/ \2 ~- {
以上为常用的函数！2 s+ S. |( T% O) W, p/ `8 A
还有很多，如有需要我把资料发到你邮箱里
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