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发表于 2012-11-13 08:48:12
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1判断语句
# m% _+ y( d8 s# f0 ? if <condition> then
; V A$ a# Q! ~* j, S$ P. J <statement sequence1>;; y$ N3 Z; m+ o, _' ^
elseif <condition> then
* v: S Q( r8 ` ^- G" Y <statement sequence2>;
+ p+ \9 {4 l7 g9 L- L else
. C# \+ w" K$ p <statement sequence3>;$ L' P x0 O# }! T% Z0 z
end;
! `, R0 Y( D, t3 Y如果分支比较多，用：
+ q& R( ~( n# @$ Z+ \ inspect <expression>
; `' C3 Z1 h6 s' k$ l when <constant_list> then
# L/ n# {8 G$ g' ~' Y1 p+ G <statement sequence1>;
( E) B) j; f! W when <constant_list> then+ n& E7 \7 Z$ U- `0 N6 h
<statement sequence2>;
$ F9 A8 {8 _9 V8 O- v( | ...
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<statement sequence3>;" w* N- u3 F* N: c& U) u' k. u$ O
end;) V& k3 S) r) |7 d! G9 z$ j
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2循环语句* n4 Y7 Y; p) |/ `, m* N- D
(1) from <statement sequence1>
1 v/ V9 j* }3 |7 h until <condition> loop
# T0 p& N7 R0 H/ u6 ? <statement sequence2>;
' Q: [+ }% S" a* ?& ^ end;: [* W+ l+ q+ @. t
(2) while <condition> loop7 |) r1 t3 p1 v: k: r
<statement sequence1>;4 R, o& G- j6 p% D# l, I$ K* b
end;. Q3 u. u r! |" V$ r1 J% u
(3) repeat 0 r0 U- x( w! w$ [* P
<statement sequence1>;
# @0 h4 l/ b4 d4 H5 _: b' o! p% o5 @ until <condition>;1 @ Q1 P' d/ \1 e7 B- |
(4) for <condition> to <condition> loop2 W+ l5 D$ R& r, X
<statement sequence1>;* d! B2 N( t2 @/ L# z
next;3 t; J& R; K. |/ {2 E# ^
3中断语句1 H+ ]6 g. c* g, ]; X9 s
waituntil <condition> prio <integer expression>;) L3 \5 K3 O! d5 p
1 o: W$ @4 s- |1 K) |+ A, { j
! D; a% C2 _0 V0 @ n7 u0 i
以上为常用的函数！
" \* w' L& l- Z8 z7 w* q6 \还有很多，如有需要我把资料发到你邮箱里 8 e9 e( W8 z% R/ }- n
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