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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4 t$ L( K, }2 E! ~4 G# v
if <condition> then
( B% h! Y% }* ~7 Y5 d <statement sequence1>;9 C2 Y! L0 |9 ~5 B/ k' `7 ^' y
elseif <condition> then
9 l( m2 O) W* G) f7 I" k <statement sequence2>;
0 K1 ?/ M Y) \) L+ G/ q5 p6 p% J5 c else }4 S4 I+ H' t& ]4 \
<statement sequence3>;5 A! E% b7 \5 e' U7 `
end;
" R) e3 n$ t v& }+ K, \* n, `8 u如果分支比较多，用：' s5 L: h: x) u5 F9 ]# G
inspect <expression>+ u3 G. t9 g5 c; y* Z
when <constant_list> then
4 D {% a! I( [0 a2 I <statement sequence1>;
, [: p R5 D4 d5 X3 Y! H8 c when <constant_list> then
# L% Y5 G- ~! s% O <statement sequence2>;6 {) ^4 `1 |' y& D
...
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<statement sequence3>;6 o& _8 {9 T0 N8 Q1 o8 Y8 f
end;8 U2 j3 \8 l$ F, u
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2循环语句; i' T5 a ]. O' N/ M
(1) from <statement sequence1>9 l3 I5 }/ k( g2 Y* M
until <condition> loop$ l& I/ l6 k* `0 P' m' |( w
<statement sequence2>;
- c7 D$ w. o5 g& r1 h: r end;1 i G; W4 r: v* Q: ^' O# u
(2) while <condition> loop: L( U& \6 f$ ~$ _( `* n( r
<statement sequence1>;
o6 x/ [% W* V4 E end;
+ {6 Y0 I6 G) S- t5 z ` (3) repeat
% z# O- K- a/ u6 B <statement sequence1>;' r. y8 C* z& l& q2 F( b0 b6 U
until <condition>;
" i6 l8 ^1 O9 A (4) for <condition> to <condition> loop
# E2 a! J2 d. x: M9 H7 A <statement sequence1>;$ ^2 D: j, s, P# {" m
next;
W+ `) F- G _ O9 Q, g+ |3中断语句
M9 O) h9 G4 _* |6 O& F waituntil <condition> prio <integer expression>;9 O- C$ E( v% R/ k6 Y
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- Q/ [& N9 f9 |. g( U! ?- K: o1 G# Q以上为常用的函数！
% `. k8 l! G( O8 R0 x8 C还有很多，如有需要我把资料发到你邮箱里 2 A" A7 W5 t9 C/ i$ _# _: i
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