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发表于 2012-11-13 08:48:12
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1判断语句
S7 L- u. T* e b" ~4 L- } if <condition> then. M7 b3 l+ _! F
<statement sequence1>;0 r) |, u. v- |6 V. Y, o. M
elseif <condition> then9 ~- A! H) `0 ]* o1 o; U
<statement sequence2>;- }" C2 _8 Z; U0 T2 R
else
f# Q$ I1 z) ~+ M& R <statement sequence3>;
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如果分支比较多，用：
$ I3 @( u: Z k. A, A9 v% O/ h2 l( \ inspect <expression>& }4 r" z, r( W, A
when <constant_list> then
$ ?$ T5 h9 q1 l. m7 k <statement sequence1>;
8 t" X- a8 i+ F" Y8 Z; @ when <constant_list> then# y4 ~- | S9 O/ e/ ?; |
<statement sequence2>;
( B% e. B* H, M6 m X: i" Z5 V ...
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<statement sequence3>;
& ^( F* b$ J0 Y8 tend;
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$ K6 G' M' p" f- P+ u. P8 c# w9 T (1) from <statement sequence1>
' }/ ~* X: M& P3 O2 h" ~ until <condition> loop
# J4 X3 w+ Q6 T <statement sequence2>;- J& W2 M9 ?1 \8 t" G' g9 R% u
end;
, ]8 `$ n# R9 r* E- v4 x (2) while <condition> loop8 H5 ^- U1 ]& X M- z: [
<statement sequence1>;0 s, ^1 E( o$ p7 e' B
end;
" V) o5 o! H( o1 N/ Z3 w (3) repeat
3 S* d; G" R6 k! Q <statement sequence1>;
8 C1 z6 t0 k7 Y+ G2 E2 ~( { until <condition>;
/ V& L, r3 E: C (4) for <condition> to <condition> loop
. _: t- p* @: w+ ? <statement sequence1>;
8 h; x1 K6 i2 b" I next;
. [) X5 E8 G3 g; ` y3中断语句, Q) T8 O1 C' P( X: V/ q
waituntil <condition> prio <integer expression>;' N# }% S9 _' X$ j4 _) Z
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以上为常用的函数！9 i5 }' |- U2 |' F
还有很多，如有需要我把资料发到你邮箱里 ; u; }) T2 Q1 {, F# Y" E1 z
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