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发表于 2012-11-13 08:48:12
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1判断语句
" S2 N; K8 T t6 s8 J2 [ if <condition> then
. ]4 \ k- D7 L* u5 L <statement sequence1>;
/ }4 J! Q3 k+ w elseif <condition> then+ ?: O" T' K) i8 ~# a
<statement sequence2>;
0 y; l1 `$ t$ a. s9 v else
' H% B! n# Y# B1 i; s% l& r! P' K <statement sequence3>;
, v, R6 T5 c3 J- W2 G; L end;
% k" z; Y" t+ G' V# X如果分支比较多，用：
' `5 }5 T4 K$ d7 O inspect <expression> u# k& x8 k9 S% ^! t5 v6 d
when <constant_list> then
" M. b& u. I% v7 w1 n- u7 g& p <statement sequence1>;, V( D( Q% O" D$ o9 {
when <constant_list> then$ z" b9 V" n$ ]2 s0 d! W( S
<statement sequence2>;
3 J# e! F# Q! k, Z5 \* }4 V2 t5 r* o: P ...
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<statement sequence3>;
, M; ?9 s9 X7 M" N4 A, v' s( z; U/ Qend;
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2 O' _5 `4 O8 ^0 q2循环语句- N! ?9 ~2 i0 }
(1) from <statement sequence1>
. l4 B8 z* U" r* y0 r: Q3 Y until <condition> loop$ b- Y: f5 }9 w( N5 g
<statement sequence2>;
0 P) {" \" b5 H: Z# j; w end;
4 R; ^8 \* l( T- s) {# y (2) while <condition> loop
3 b1 M; k0 a- E& w$ f- O3 G, { <statement sequence1>;
) v2 B) d T& ]! d end;
6 Q4 R4 V6 z: t& z, B" [ (3) repeat * S3 J8 k& W7 R( [ A3 p. ^ D
<statement sequence1>;
. W; ^( V0 y8 _$ N- w until <condition>;( T# H# J5 F! Z. b5 y. k
(4) for <condition> to <condition> loop
- w: `, M2 H: u) N <statement sequence1>;
% R) {8 F5 E2 p% Q0 {! i next;
8 i" v( P! u) k$ V3 G4 I3中断语句
0 s0 ~# \: K$ U9 R3 G( e waituntil <condition> prio <integer expression>;
0 [' s* J) [# Y& k& ~# o2 k5 r, d! M# y; v3 ~, \/ V, d& J
5 S. s0 x9 Q" L! a. y( Q
以上为常用的函数！
3 L5 q, N1 L: e8 _还有很多，如有需要我把资料发到你邮箱里 ' y$ J% l. |2 E4 _# f0 b5 I
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