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发表于 2012-11-13 08:48:12
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1判断语句$ N k# Y9 `$ r5 C* e
if <condition> then2 M6 h! C X+ y9 k1 R
<statement sequence1>;& A2 k+ r& b) w: N+ p
elseif <condition> then v ?- C! `0 z& K+ |
<statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：7 L6 |* P3 L; F
inspect <expression>
/ m9 k1 T; ^7 W( c: e when <constant_list> then
& b& G$ V P; I/ T( _- K <statement sequence1>;/ N" m- [# o+ s( v) S% J7 {
when <constant_list> then5 V; d1 ]# e' n
<statement sequence2>;( c! g; u4 x" m& N3 D& S! H
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else
% V0 I; }8 M, |' w0 N0 N6 } <statement sequence3>;! z' ^) z, q: X# o
end;
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$ q$ b$ e+ a. l) ?9 r! @2循环语句
) a g3 x3 T, ^; W- C6 z (1) from <statement sequence1>. E1 \2 x) {0 U, J' G9 Q
until <condition> loop" R1 B/ B! o. n
<statement sequence2>;
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(2) while <condition> loop: N- L! Z8 {8 K( P$ {
<statement sequence1>;, R. Q) r6 o' |1 i5 x& {( G6 l
end;
1 {( w9 L4 S- ^" d- a5 b; a" {: T (3) repeat $ C9 f9 ]; @1 |1 S5 z! h7 ]
<statement sequence1>;
$ ]% I( u. [: {( @ until <condition>;* u. [7 `& `" K0 M
(4) for <condition> to <condition> loop+ D. X2 O/ {; q+ w3 e" b% b* _
<statement sequence1>;& a1 w& P% E6 [! p3 U) J4 q
next;
" H; t) D% f( y8 N) k3中断语句
8 ?$ Y: b3 f! N# n4 j' Y% X waituntil <condition> prio <integer expression>;
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以上为常用的函数！
i/ `* X; g* o6 t6 m还有很多，如有需要我把资料发到你邮箱里 6 v' n9 q# V* H2 ^5 |
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