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发表于 2012-11-13 08:48:12
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1判断语句
0 _# y$ z$ |- f+ h$ D' t if <condition> then2 A6 b! t7 E% v Y& |. N g
<statement sequence1>;
# s- U7 Y9 V3 ~ elseif <condition> then
. g% }4 I1 _( V7 m, L8 E6 Q a <statement sequence2>;" G& F4 G: b$ i5 q9 ^
else " t3 K2 w% ^ O' V! [
<statement sequence3>;
+ `6 C) f6 G' s' ]; ~7 I2 K" A end;
5 V [: Z6 U& u4 L) D9 A3 w如果分支比较多，用：9 i+ ?/ V) T8 X5 q
inspect <expression>
/ b7 Z1 Z7 h* z when <constant_list> then) O8 G- a1 X3 M u' w0 a$ k2 r
<statement sequence1>;
h+ L: D' X: V4 _ when <constant_list> then+ a3 t, d2 I; @$ W- G, A
<statement sequence2>;: u2 Z8 _/ B6 W, l
...7 ?8 m3 X) ^; `: }; r( }
else0 i' W& X4 a( j! q
<statement sequence3>;9 }& k4 D% V/ l V
end;& A" U$ n2 ^& r4 g1 V
, E3 l9 B0 A* O/ L2循环语句7 ]8 W, f* Z- h/ K: }
(1) from <statement sequence1>
& t) V0 ?) n5 O* [$ `) V until <condition> loop
% m5 P# U) {0 Z <statement sequence2>;
$ L: r" u% m% p" ^4 R F end;
& j. {" o' G' O8 ~5 U* Q A (2) while <condition> loop
, W- \- J6 Q% L- O# s5 ^ <statement sequence1>;
7 e# A" c5 V8 Z) [) H end;; S) ^, s& X G! o/ M. j
(3) repeat
- b0 E% h: [7 s4 i- n4 Z <statement sequence1>;
! G) K, B6 w4 o1 r, s. W until <condition>;
" j5 S8 c# G7 I& \+ j (4) for <condition> to <condition> loop* G9 ]- }, X+ I q, Q6 d7 K/ s
<statement sequence1>;7 z, y9 L8 y% X$ u7 G8 U4 }# V: f4 u
next;$ L) r6 Z' C5 \# m$ |
3中断语句4 p8 G7 F$ P7 `
waituntil <condition> prio <integer expression>;
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$ \& h1 A( U' \, {% T/ Z! j7 X以上为常用的函数！$ H( J* G# W9 @
还有很多，如有需要我把资料发到你邮箱里
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