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发表于 2012-11-13 08:48:12
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1判断语句
, h$ ]; o2 k% y3 V1 g, s if <condition> then
/ J' ?5 j$ J" F: } <statement sequence1>;6 J7 Y# L# \# C0 v) }9 H; P
elseif <condition> then
- @! V ?* x# s) {+ }. Y" n# ~5 u <statement sequence2>;
0 Y( h, p5 G, g else
/ U4 e9 \3 r( `( B1 c <statement sequence3>;: f' Q5 m0 F9 Y1 h6 B0 O' A
end;! a3 k: v0 f' b. a: j1 o4 {3 F. X& Y5 o
如果分支比较多，用：5 @* z% h% h( T: o
inspect <expression>, g& y v% D6 [+ _
when <constant_list> then2 N+ x/ V) \+ C! b* e
<statement sequence1>;$ t) A9 y& F) j3 O% I
when <constant_list> then
; }6 z% I' b8 r& k <statement sequence2>;9 {0 g% h& R/ l' ~3 w7 s
...
5 ~7 `, P8 h& K2 o, x else
6 d* G: `1 h$ o1 k8 J8 ^2 e <statement sequence3>;3 v a) A# a& g) n9 p
end;. B; D8 R* s) D5 Q- m7 `9 A
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2循环语句6 m7 T, ?4 g+ H% P' h
(1) from <statement sequence1>( @" A3 l6 C2 l' R1 g3 K
until <condition> loop
: U4 e L: r. ^4 B <statement sequence2>;
' j1 V& L3 l& `# ~, f end;
2 {4 L, f" w( I2 J (2) while <condition> loop
# |* D6 G( U8 w8 r+ ?. t+ m; ` <statement sequence1>;, W, I+ M2 T# g% E! t+ K( A
end;4 B# U6 h7 Z, K. t, r8 w
(3) repeat - V0 l' V+ X% c& v l! ~- P
<statement sequence1>;
5 }2 `+ L& z3 d# d+ P- y0 o$ t until <condition>;9 }, v q2 v P# L
(4) for <condition> to <condition> loop
7 A4 r. A3 I( ^/ k) H& W+ O7 d <statement sequence1>;3 ~. P. Y1 X! I: `& U/ D
next;( }* ?* X4 c/ k: _2 M t& h) X K, C
3中断语句% l" x4 \- F I4 V: H7 D
waituntil <condition> prio <integer expression>;* ^& i8 j0 L# W5 A7 ?0 J D: T
: }+ f! ^: m$ L/ Y( N( ~* U( x2 ]0 P$ t4 Y1 K H: W9 W
以上为常用的函数！
7 S% a$ q! W& ~: j! l5 i还有很多，如有需要我把资料发到你邮箱里 * f- Z9 @* P8 x3 n
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