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发表于 2012-11-13 08:48:12
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1判断语句, M8 T# n& e( @, h" `9 m* I( w
if <condition> then# v8 D9 g2 V" E M; ]+ k* y/ ^
<statement sequence1>;8 {/ g0 t- E6 Q* L: a. a
elseif <condition> then
9 A( v* ]" R/ X6 { <statement sequence2>;# R% ?$ [4 T. Z- P+ P* m% i L
else 8 `' o( A& m7 n/ a. P7 k' {
<statement sequence3>;
" G9 {" I3 W' [5 z* d8 A8 I end;2 {8 j+ e0 j3 {
如果分支比较多，用： c$ v# k9 g+ G+ T; x! ^& ^
inspect <expression>
" M' A S y8 H: r2 ? when <constant_list> then
7 C5 t) E7 _* i5 g, Y a <statement sequence1>;
, m. r! |# Z7 o5 I8 v& W when <constant_list> then
6 O! w8 T* k% I) f/ H <statement sequence2>;
6 g) A9 e( l" A" ?2 ]8 N }6 B1 C2 | ...
/ T4 ^) y; S/ X& N" A else
* l- `: h. [3 r! m; s% U* V- l <statement sequence3>;
/ r3 w; O: T7 v& P5 ^end;
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2 S) w& y8 e1 O* D; K: S2循环语句
/ n9 v& z E% L$ g& D- n (1) from <statement sequence1>) U: u# @$ P1 j
until <condition> loop1 O/ _8 `; p/ |1 b, N. ~. @
<statement sequence2>;
1 f- M! |: G5 r6 |) S# O end;$ [, y# u& o4 h9 I- c# W4 ?& Y
(2) while <condition> loop! H4 _4 Q m, \) f; D
<statement sequence1>;
& X' B1 U% S( O% \( N, \0 P end;: V. f. c0 V: J4 d& W
(3) repeat . v( S& f6 D) C" Y# R, \
<statement sequence1>;
& w, y0 {0 y6 k) C" O' {* } until <condition>;
" R$ n9 G; D( @ U/ u/ v (4) for <condition> to <condition> loop
* Q& W2 Z$ c8 C' @ <statement sequence1>;! \4 \+ w6 k& S: [# Z- h9 Z
next;
% _; G# r+ i& W1 T3中断语句 A" e+ ]& X+ h( f1 [) A
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
+ F; X; a- z* L+ g A8 _还有很多，如有需要我把资料发到你邮箱里
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