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发表于 2012-11-13 08:48:12
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1判断语句' R2 g3 i* R& m8 `
if <condition> then' ?' l% ]4 z! b1 \9 H
<statement sequence1>;) M' b+ |/ @+ Y T b' z
elseif <condition> then
5 q, }* x) r8 M: W: Y <statement sequence2>;
+ Z- k" r5 l! X else
/ B1 T4 @& e5 ~- S <statement sequence3>;; j& I5 j/ ^ @, A
end;
) N; ^( |( ]. `) ~( \ X& ^如果分支比较多，用：( `( `8 V( X; S2 q$ X
inspect <expression>
' a s) x" l( i& p" h& L) `0 z* Y when <constant_list> then
# P9 A/ L5 ~6 d4 a" r0 l5 Z <statement sequence1>;' b. `; J' u3 e' _2 Z
when <constant_list> then
9 R+ B t" w+ i# H5 q1 X3 @ <statement sequence2>;
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else9 q, y; ~' }/ R
<statement sequence3>;# U, M2 L& j# y" n( |
end;
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3 G' [" c0 o" }1 ~; F2循环语句
0 S1 E3 n# i0 {$ \ (1) from <statement sequence1>
. w& R# D: C7 U% D9 s until <condition> loop6 T) \3 J8 Y1 ~; N! N$ D% h" I
<statement sequence2>;
( j; L7 X' m, M! E+ o end;
, |4 r$ \* }' e- I# U0 y (2) while <condition> loop [( n, ^4 V& N5 W* i9 Y+ _/ f
<statement sequence1>;
- r* P2 X( S+ I/ Q W end;+ V' z- e1 r& R$ ?% Z' N5 L
(3) repeat
& P* j! n. g3 ^! }% o- N& A& J* c" v <statement sequence1>;/ N$ N" ^' C" ^' \0 q& T) C, {0 x! K
until <condition>;. R: Q0 z+ F+ M, j9 \& ?& d7 j4 i
(4) for <condition> to <condition> loop
0 h& x) }. u' ?* ~ <statement sequence1>;, Y+ R# q4 Q' o+ j( H( T
next;5 U' Y- J; u! D9 H( h$ ]
3中断语句
' O8 p9 w: {$ N3 [6 e/ e waituntil <condition> prio <integer expression>;* ?7 D0 L7 d Q! o* A
4 @3 h5 j/ [# X+ t( \
$ z. N0 Z. `) f7 o0 B3 q以上为常用的函数！: j5 l4 @3 l) m- U8 Y K; V3 Z* f$ h# F; K
还有很多，如有需要我把资料发到你邮箱里 7 H0 }5 [% q+ @$ G: T+ B0 l$ l
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