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发表于 2012-11-13 08:48:12
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1判断语句, H4 ]( u% b: @
if <condition> then
1 E$ [% s. F& I" R <statement sequence1>;
( C( v/ q2 h8 r8 ~% p elseif <condition> then4 W; H0 N8 u- Z2 C" _; U' J
<statement sequence2>;" a6 j. }0 L5 ]9 z
else ( d5 `7 t! ~* s9 h ^
<statement sequence3>;
0 j X) j1 ?! d6 a end;; H. b( P: i4 x* \- m+ Y* Z3 c
如果分支比较多，用：
7 ?) U/ u( g7 `6 ^- h. n0 i6 W( F inspect <expression>
: X* \9 D7 h+ l) U5 \ when <constant_list> then+ L, E, o! n @% u; O" Y
<statement sequence1>;. o0 k: k. P D& i( N' h
when <constant_list> then
2 r) T# I3 N7 L$ |3 ~" P) q <statement sequence2>;7 y! y' Z' p. [, Z4 z) ~! [
...
$ P8 J( U1 z% X. R else
: V8 ]& \3 T, s& @; a& F! `0 p <statement sequence3>;; `$ N- B' R2 m& Y t
end;
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4 u% \6 K6 c5 J* t2循环语句 P6 D5 q' \0 s) }
(1) from <statement sequence1>
; B% B/ l1 @0 V/ ^) @ until <condition> loop
1 m7 p9 t* Y2 N- ?) p4 K9 O <statement sequence2>;
5 b+ i( s7 Y% p5 R4 h. M end;
# w+ T. o% |8 A" K* }! k (2) while <condition> loop
' Q/ O; s+ J0 X. J! z <statement sequence1>;0 a( l6 M! y: F. z" x# @6 }
end;+ T, }5 U' C1 f; L
(3) repeat
2 v" h w! @0 Q1 @. R4 h <statement sequence1>;
6 H/ j( K7 Q1 L6 K+ j/ O until <condition>;1 E# \9 [( J/ x3 z4 T
(4) for <condition> to <condition> loop
& S0 b9 [" ~0 f$ \3 ^ <statement sequence1>;
: K' U1 c0 {- _' e" J& E next;$ Z+ o0 V7 M0 o% ^3 `$ M3 }3 k9 v
3中断语句9 s7 {9 [5 s5 c+ ?2 u% v
waituntil <condition> prio <integer expression>;. y8 p4 `7 B; l- m
* Y! E5 \" ?3 a# }; u
0 v- b+ U+ r6 b2 w( C% \5 |6 y以上为常用的函数！
3 [. a/ X8 Q8 q) P" Y: Q还有很多，如有需要我把资料发到你邮箱里
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