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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
' Z3 Q6 B3 V1 ?) O if <condition> then
) u! D& s }. _ <statement sequence1>;
- ?) i6 b1 J4 u/ y* | elseif <condition> then
( }2 }1 g: h' P1 K, ?( n8 u <statement sequence2>;
+ E! z8 D0 s- s) ^ else 1 h* M) p6 f/ I3 [& y/ a$ U, a
<statement sequence3>;3 S7 p9 A4 G- i3 q
end;2 Y3 e1 Z" B, I; \5 g. H- j
如果分支比较多，用：
* K9 \/ P" a* \* D$ J' y% Y6 ^0 z inspect <expression>
" v* m1 R, n. W6 S& T when <constant_list> then2 u B6 C, A- I* W3 W3 ~
<statement sequence1>;0 k4 R, z j$ g: p' e% s1 B- s
when <constant_list> then1 p7 P; J, R! Y+ [$ o3 Z, ?% s' X
<statement sequence2>;
0 d. _( n( E' I ...: _4 }2 ]5 m; C1 C$ j
else% {" T y% K R8 Z. Z% h
<statement sequence3>;; e; j6 A; A% ^6 F
end;) b# {( r8 {5 G. [- i: Q* [
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2循环语句
; Z0 N6 K4 K- X& y (1) from <statement sequence1>
L- Z: x' a- w until <condition> loop
% M; F) f' l9 D4 V/ P8 _" H. _$ z; p <statement sequence2>;
9 k1 C! i/ r- _ d# h2 r+ y end;( H. G( q, W N( d) @3 `
(2) while <condition> loop9 u- b8 ^ Q1 z& A' s$ _
<statement sequence1>;
: C0 a+ W6 q! `( `3 f) c. p end;$ R+ r1 H7 _5 d; I5 r! u
(3) repeat / ~( B2 x1 V) x1 k
<statement sequence1>;
1 Z2 `0 z4 `7 j; L! I9 q until <condition>;
$ p. K" N" L: t4 D; r& [/ r; _' w (4) for <condition> to <condition> loop
+ i8 M# l* ^4 x" S" x5 g <statement sequence1>;/ S( K7 K- B- k6 R4 @3 q6 \
next;
8 g0 _/ Q; {6 o' J4 Q3中断语句" ]# N( P* u' @
waituntil <condition> prio <integer expression>;
$ ~- L" Q) k; a7 u; h$ S' e
# W- V1 d5 M, \
7 N4 E4 U( ]' v4 r! p3 d( N$ d以上为常用的函数！( |9 r. I# h* ?% q8 n# x
还有很多，如有需要我把资料发到你邮箱里 * {$ R/ Q$ L, M) o5 J* k s$ d {/ c, f
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