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发表于 2012-11-13 08:48:12
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1判断语句
) J4 Y" u, o' m5 b if <condition> then
1 f, }; K' ^& R7 I) k* W$ r( s6 L <statement sequence1>;
; N$ |- r: d/ m: y elseif <condition> then
# I% y8 f2 ~# ]0 [- m5 {) H5 B6 d <statement sequence2>;$ _3 S% N6 q/ G9 P
else
l' y* l- L4 r$ D& r <statement sequence3>;
) D3 S. K% T, `1 A$ j. ] end;4 @9 W: w- V/ S2 b0 u3 S6 _
如果分支比较多，用：
8 P1 k/ w9 z. l( Q inspect <expression>7 X' R: N; E+ H3 ]* ^5 h) J
when <constant_list> then
9 g T+ a1 @; h8 {; X% E V: _0 x+ Z <statement sequence1>;% ?8 Z' k9 h- y1 r
when <constant_list> then+ L: S: r y" h* R5 T
<statement sequence2>;" n$ R0 ]# @- j& B, b
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else
" u- s$ _$ p! v9 r9 w <statement sequence3>;
7 a2 s, N7 D$ S" U9 fend;; [0 W+ c- |; @ \
4 d; R0 t6 o' }& a2循环语句
) e0 `) P* W3 J0 f (1) from <statement sequence1>
% U2 ^7 T- D$ S! w+ ~, ]( E8 A; { until <condition> loop0 i- S5 w m2 p1 ~- z1 Y$ d
<statement sequence2>;, O! B+ }0 o$ L l+ e1 H6 k
end;' R% O* B! I7 K; m U" X
(2) while <condition> loop
4 q* X# j w8 O( S p1 N. N <statement sequence1>;
* i/ ^4 w( d3 Q. n end;
5 m+ f, C& p" b* w6 S7 o, _+ c (3) repeat
$ f: ~$ C9 y7 l <statement sequence1>;
) w: i1 M* a/ M until <condition>;5 {$ r3 L' L; `8 v+ O
(4) for <condition> to <condition> loop
1 `+ }6 n+ @3 X( K <statement sequence1>;' Q0 ]4 w4 T& ~* W$ X9 @
next;8 S7 B2 U0 a6 g5 Z% ]
3中断语句* ]1 u& b2 a$ @5 s9 U
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
+ s" b: |: c5 [; F- R9 u, a7 q还有很多，如有需要我把资料发到你邮箱里 6 L& u: V/ S0 Q' }. h
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