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发表于 2012-11-13 08:48:12
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1判断语句# u% J7 R. a, A- r) ], P% n5 o' }& E
if <condition> then, \' p9 V- T+ q$ T8 _, p- w) M, S8 U
<statement sequence1>;
, c6 @& U8 G# @9 Y9 e elseif <condition> then
6 u5 M( `& n7 f5 `+ r) h4 E$ @- Q' F <statement sequence2>;
8 l: s" p6 J& ~+ j; t3 e else / U% Q; e7 n, u) z/ a4 g
<statement sequence3>;
3 _9 s: c2 i4 ? end;
' m% B: b. b$ j6 C7 \# w: q) u如果分支比较多，用：
9 K: S& _# t/ r+ U: C/ l inspect <expression>
' N+ H# F& q, S8 [, [ when <constant_list> then
. |2 R) t0 ^: |/ @6 N6 H <statement sequence1>;# v+ @" b8 }# g/ N1 }# {
when <constant_list> then
8 g+ p$ |5 M8 G <statement sequence2>;* C5 r8 x8 ?. M/ b2 i/ t [
...
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<statement sequence3>;& U9 T! Y: N+ e+ _/ q
end;
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' T* J: ?" ^* I2循环语句7 y4 X H) i" G( E" L/ `4 u9 `
(1) from <statement sequence1>7 C8 q9 |& T- C5 Z/ F
until <condition> loop
- V. Z3 C7 r* l <statement sequence2>;
1 n" D* n4 a% c( s/ } end;
5 a# t9 Z: a$ A6 b! D1 Z9 B: X (2) while <condition> loop
/ P' F& p* E& X; e( c1 h- d3 B D <statement sequence1>;! U9 [, p. R+ j% Y7 \3 S" _; s
end;# g" F) _6 P9 x y
(3) repeat
8 A! N, U, T' h/ `, d4 z1 H <statement sequence1>;+ f+ G* |" W* L3 m1 ~
until <condition>;- h8 X0 U9 E' T9 E
(4) for <condition> to <condition> loop
9 y. s1 Q3 s0 G# L, w <statement sequence1>;
7 P9 N! \2 \+ I r( f5 F next;
) W! [( [# l7 ~3 r# Z$ p3中断语句
' a/ T3 M# T1 Z waituntil <condition> prio <integer expression>;1 z% `# s) }' G1 s/ u
7 \+ x3 @1 E. M2 g- p8 }2 C& ]# f5 G
以上为常用的函数！
( W5 W* x8 s1 a: w. a还有很多，如有需要我把资料发到你邮箱里
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