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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
# m- y+ ^- o) o" d+ Z7 L if <condition> then
. C i2 s- i+ q$ z- D7 Z0 v <statement sequence1>;0 v. U6 }' }( o+ S' ?6 Y% u; e; r
elseif <condition> then
$ c* F: a- |# T0 M <statement sequence2>;' N+ }4 U0 c+ J* Y
else . J% S# p$ Q& b) I
<statement sequence3>;* W: F1 u- j* g0 [9 X
end;" E9 |$ o4 p9 {9 ^ R4 \
如果分支比较多，用：
4 s' v" Y. U5 p; V3 f2 o9 l inspect <expression>
3 t# i% S& L$ P; A( y when <constant_list> then" }1 W6 W' C& Z4 c
<statement sequence1>;4 {; @. q' I, J4 G
when <constant_list> then. u2 L: S% c# l, e
<statement sequence2>;% t4 Y8 U0 U! e7 x! n( M
...
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<statement sequence3>;' L0 C A( ?, I5 k: R2 I
end;: _1 y8 ]* b% k, n0 F) Y% n
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2循环语句
: R+ L' |5 c8 \2 r- X* L( J9 k (1) from <statement sequence1>
* u( a: }% y* ]; r- `2 z, b6 T W until <condition> loop- E+ ]; e* B& Q
<statement sequence2>;4 P! f: l8 l( R: O$ c5 m7 T
end;' V% \ Y1 o) \, C$ q
(2) while <condition> loop
7 |* P) S, l3 Y( t8 t- Q <statement sequence1>;5 u6 m! _8 p o/ R2 H/ p" z) W% w
end;% w9 O4 d1 c( ]9 V6 ~
(3) repeat
; P6 Q& |- K2 o) L! F9 S4 L <statement sequence1>;
) v! t b) o( k, {- r% j until <condition>;* j1 b9 V7 \& k7 {
(4) for <condition> to <condition> loop& n( `: w3 n1 c1 _
<statement sequence1>;
$ ?1 U0 k0 E1 R) S7 `8 a$ W0 ~ next;
5 Q0 A5 x0 g0 p3中断语句* X- J" J6 A# @
waituntil <condition> prio <integer expression>;
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; g, o, R7 } o, [% V以上为常用的函数！, v; ]$ i( H0 P& H
还有很多，如有需要我把资料发到你邮箱里 8 q0 X% l& _9 _, S3 \2 ^
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