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发表于 2012-11-13 08:48:12
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1判断语句
) u; z8 @2 x' J. {+ A9 } if <condition> then. E$ j T" U; B2 h/ p5 V
<statement sequence1>;
6 I0 q; O+ I( A4 s1 T elseif <condition> then8 f$ x" F p& r- j" w# v% [
<statement sequence2>; n" a3 }# W, m
else
! D m w9 E) W* k% K1 y9 d <statement sequence3>;
5 G: q7 G% }8 x0 f end;
, J3 X4 r0 L j! N; Z如果分支比较多，用：
# m5 h. @* d, d' \/ b* y- ]0 ^ inspect <expression>
2 S" o5 I. [7 a$ k" F# C+ x/ q when <constant_list> then C% S N% w& b+ i
<statement sequence1>;
6 o$ K6 x6 H1 }# \* a when <constant_list> then
- C) E" Y; D/ ^. F- H. M <statement sequence2>;
! B: o r, K+ w2 `8 c( U" v ...
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<statement sequence3>;4 C: `( J: C+ B& I7 t
end;$ N" X5 i/ |7 f3 a$ ]% C( i2 [
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2循环语句! @* \2 \, ^7 X6 P2 ~% n! i
(1) from <statement sequence1>% ~8 t& w8 P, U1 k7 c8 {
until <condition> loop) |. h7 K) J( h" ~! p
<statement sequence2>;; [0 B! b" ~4 i* y' ]& V
end;* d6 |! D9 l' _7 q
(2) while <condition> loop# x" w7 `" {9 x/ R+ w8 x
<statement sequence1>;
$ q$ [& ?, Z) ^: h4 _" h end;9 E: `$ q/ v- g5 G) x
(3) repeat
D) B6 }; R5 r: d& _8 y <statement sequence1>;4 ?( u( z: p# v7 i( u
until <condition>;
6 ~$ ^* X: U$ U4 q8 v" H- Y (4) for <condition> to <condition> loop; i/ [! |5 K2 W6 a% s$ S
<statement sequence1>;2 o3 W( C9 O6 L! Y9 j$ z5 R4 T h
next;
3 Q3 V' G, |) m5 H. Q; ~3中断语句
1 \0 h$ }9 X/ k" w waituntil <condition> prio <integer expression>;
5 K: O+ e7 e3 f( i! \. x: h* P9 e0 q1 a. k% d) l
9 j+ Q' Y4 D1 l/ E# D/ I" }以上为常用的函数！6 l5 X' m+ U+ d3 h& ?6 _+ @0 I3 ^
还有很多，如有需要我把资料发到你邮箱里
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