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发表于 2012-11-13 08:48:12
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1判断语句- |1 J' ?8 D/ c6 k" Y
if <condition> then
8 R" E* ~4 j( _ <statement sequence1>;3 S& {. B+ i$ r
elseif <condition> then7 M( ^6 H! Y% K/ p
<statement sequence2>;
: b) b8 v0 Q) M, n' u; h else
+ _! A% m/ D% a$ c, u9 L# Q/ D <statement sequence3>;3 I ?& Y' x, @7 A; t* b3 ^& P
end;
% ]4 ~+ X. J( {5 |5 ~) I0 w' Y如果分支比较多，用：
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when <constant_list> then
' ~, T0 n5 ~! a! W; ` u, V <statement sequence1>;6 ^7 b5 T" O; L) i2 S: z' K
when <constant_list> then
8 o% i- d- P9 G4 `# F <statement sequence2>;- s9 @& \. w4 c1 a
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else% p2 N, M2 }! W) Y2 ? C3 e; a
<statement sequence3>;
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; d8 ], `/ Z/ M% Z; D* v+ `2循环语句
0 L. w1 R, B* ` \ (1) from <statement sequence1>6 T4 A3 j' F$ o" T
until <condition> loop
5 y8 Z4 b& @& e' d @9 G <statement sequence2>;
0 h( q5 V1 q! r8 N3 D end;
- |) h; f$ e; x0 r! R' @ (2) while <condition> loop
. G8 Q# t4 @: s9 g <statement sequence1>;
' w# }. L; K& C+ Q/ D4 j6 h end;
, U, }* L9 T' Y, T$ a8 E6 h! W (3) repeat / [ P+ y& I4 P0 M! G5 [
<statement sequence1>;6 P+ Y- j$ D+ l, [) ]* {5 x* r
until <condition>;
- G$ W: v4 X6 P0 e3 m" ]# Z, l8 c (4) for <condition> to <condition> loop
5 R8 f, q, J# t, D <statement sequence1>;& G3 D5 L7 z0 _2 o
next;+ G' Y* u& x! H% r8 |& P0 h
3中断语句
7 ^: t' u# r# G# @* T# J6 y' m waituntil <condition> prio <integer expression>;" s. x q# L9 j E
p9 E! {) S. C" T9 T$ A! ~
- e2 ?8 T) ?1 C0 [4 \以上为常用的函数！) w5 o9 L5 [: S# E
还有很多，如有需要我把资料发到你邮箱里
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