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发表于 2012-11-13 08:48:12
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1判断语句
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<statement sequence1>;; c3 Y, |% G( z
elseif <condition> then" G3 L, u [0 E/ u4 r4 [# _* I
<statement sequence2>;
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<statement sequence3>;( x& s& i: T& K( M' X4 r2 ?
end;
$ ]$ s A; q1 C7 c8 Z8 \3 X! k如果分支比较多，用：
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when <constant_list> then9 H4 L7 Z' {) U( @
<statement sequence1>;. U& p% v% k% o' n. L9 k( R
when <constant_list> then3 U9 Y6 v: B) y- r
<statement sequence2>;
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else/ H9 f2 ^! P1 g
<statement sequence3>;
9 A- p4 [9 V8 X7 T' B/ U: `end;
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& C: ?3 F) l$ Y6 M2循环语句& L, U, o) ^ U$ Y7 t3 l3 z* S6 v
(1) from <statement sequence1>
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(2) while <condition> loop" T/ q c8 j( S3 X8 n4 [5 n
<statement sequence1>;
8 D' W N; v, K P end;
8 c: M/ J6 m! O5 L U# M (3) repeat " H+ b& ]* {: m' p) f* K) C
<statement sequence1>;. F0 f4 R5 }. q! M+ O
until <condition>;* Q A% H) { {3 |
(4) for <condition> to <condition> loop' l6 c' z9 e+ {# l
<statement sequence1>;
$ H4 M" k T7 O+ g8 A next;
/ X5 D1 v6 F, o. i. b; s3中断语句 f: S3 D5 q& n
waituntil <condition> prio <integer expression>;
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8 [& e- v* k4 P以上为常用的函数！
/ w" _7 X8 z9 W+ P4 X p还有很多，如有需要我把资料发到你邮箱里
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