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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
1 L* x. F; S3 u2 c, ~6 s- R if <condition> then8 F7 E- n! W( ]; L1 M' X, B
<statement sequence1>;
g: X4 I2 H- t% Z9 S3 j8 q7 O- ]2 t elseif <condition> then+ Q# ]5 h; M. U% s( P9 Z
<statement sequence2>;8 w( f( }0 n8 _+ j( N _/ k4 C! w
else
8 ^8 d9 K" I9 i, Y% [) g <statement sequence3>;( `1 Z+ O+ l+ i5 f9 `5 S
end;2 E; d$ u7 K5 i" V H
如果分支比较多，用：$ ?. @" H9 k8 l3 q9 z O
inspect <expression>0 f0 x/ Z7 E3 U) }
when <constant_list> then
& ^/ a# w% v8 G0 W" r- q <statement sequence1>;
5 g7 Z9 a. q! i; T when <constant_list> then
; R$ h0 ?1 U9 W' i <statement sequence2>;4 ^. O ?7 ?' t- C: G0 x8 Q4 u
...3 c. F# D/ q0 ?8 u8 d% ?( P
else
2 t* t- m3 H& b, Q8 T+ y; y: X <statement sequence3>;
& N6 Q. y( i3 M, t% M; n |0 `end;
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2循环语句
6 V5 D8 I3 B, D! K9 _! F6 I (1) from <statement sequence1>
1 z' L6 P5 p2 |* ^7 ? until <condition> loop
! Z I" U3 j; X" W& z, p4 y <statement sequence2>;; }4 s0 {5 M) W W1 A9 `/ e
end;
0 S* }2 c" H. \9 Q* a) V (2) while <condition> loop7 L3 n2 g4 d+ B% g1 | m/ ]
<statement sequence1>;' L- C/ x1 ~7 k; C
end;- Z3 k* R! r, I$ g! F0 M
(3) repeat ( l4 E& O' O% }
<statement sequence1>;
) n9 C' p ?' N Q( g until <condition>;- {0 n) l( N. V/ L
(4) for <condition> to <condition> loop
0 y+ ]& [' k. A5 n+ w <statement sequence1>;
8 c1 C1 B/ T# i# { next;
6 [% W! d% b7 e' L3中断语句2 \: l0 j( ]( S. h, q O" U
waituntil <condition> prio <integer expression>;
S2 H; ], _2 l, y, g% c% D) K0 r+ W* a. [
5 C- d$ w, n. {# o3 q
以上为常用的函数！
3 F4 u' M" J7 q! u- J9 V2 R还有很多，如有需要我把资料发到你邮箱里 ( c s8 Y8 c4 y" Y* R1 d( ^3 E
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