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发表于 2012-11-13 08:48:12
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1判断语句* R9 {1 e2 Q$ O0 C1 d9 x
if <condition> then! A O8 h6 a) f( ]* ^
<statement sequence1>;0 _) Y0 R1 z8 S2 H
elseif <condition> then3 V$ h+ N8 r8 ^% o1 |1 x
<statement sequence2>;' \, m% m8 V7 W- m# }/ o: H5 ^
else & y$ s" v; l! ~! h! z
<statement sequence3>;
5 h7 Z% ]8 b5 d" [; y4 I end;
) f; }% e$ q. G如果分支比较多，用：0 B" G$ w# Q; A/ G: [: `/ F& ~
inspect <expression># K9 \1 Z, L3 t9 m7 L! i
when <constant_list> then
1 [1 P- Z- |. m! J ^; c <statement sequence1>;
% ]9 v4 b- P# Y when <constant_list> then
/ Q- [8 C& W; T <statement sequence2>;8 r Y, q' ^( i4 K P
..., ^: G1 N5 u3 T) f: h* F: M
else }4 R/ ^, ~/ c! W$ T
<statement sequence3>;2 G7 W/ V: P* ]/ x2 P1 O$ w% z
end;
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5 K% _, q- B6 k- @% ~2循环语句 _: n! M6 A: Y; n ~6 P4 O- ^
(1) from <statement sequence1>
# _$ C+ V& ~) C) N7 Y* E; N until <condition> loop
~# [! v8 [/ O <statement sequence2>;- Q" T8 J+ V" _+ d1 v6 t" ]( L8 d" |# Q
end;
" l5 j- u( ]5 i) O (2) while <condition> loop" G' _9 F' y/ n: M
<statement sequence1>; l" K+ k* [ P; J( f
end;9 p, H. x Z3 Y' l9 r
(3) repeat ' i P$ h+ f3 n B
<statement sequence1>;$ |& O) H1 p5 d. a+ u
until <condition>;) u: k2 ]4 [! M: Z; K5 W8 ~' w. L
(4) for <condition> to <condition> loop) j: h! Y7 t) V! t+ L! U3 u
<statement sequence1>;
% _6 }2 E' c" g; @" ^) x# ] next;
/ V4 o o8 r" L6 I( J9 O3中断语句
2 q5 U6 d9 m+ Q! G waituntil <condition> prio <integer expression>;( L) A- }" [* O1 N3 O
6 S6 [+ ]$ C) ]
% O% i: l1 R& Z1 M3 c d/ t4 g以上为常用的函数！
8 u) V$ H6 [) H r- J+ V/ @0 N还有很多，如有需要我把资料发到你邮箱里 4 s A1 x7 N' ]5 ?' x
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