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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+ j( j3 Z1 O) n8 \/ i3 y
if <condition> then
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elseif <condition> then E4 r1 P9 Q/ T, y; A
<statement sequence2>;( F7 H) R( v2 D" \. P
else
" x* \) Z* n+ S+ J: R# [& L <statement sequence3>;
& |: ]' M6 j9 g/ d) K end;
2 M4 c6 z! F. W4 j1 d如果分支比较多，用：
/ K: C" u0 t ^4 t9 f# @1 N inspect <expression>
: L+ [ f0 q( ]5 @5 e% ~$ | when <constant_list> then' x. R$ U* L/ q! c2 H' _, l P
<statement sequence1>;% B6 z8 r6 z2 N. z1 Y& x
when <constant_list> then1 N7 k3 D( Z( W
<statement sequence2>;
$ q- H3 C2 W. m! ?) n, R- `) B1 D/ ] ...
' }2 X- ^& ^; z9 M9 O. s else
4 e0 F5 ~5 P2 ?6 u( } <statement sequence3>;2 t- f' \5 l0 e3 T. u6 s7 {
end;
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2循环语句
; n# T( V0 P: d4 } (1) from <statement sequence1>
4 D+ R4 T* D+ ~0 \ until <condition> loop
2 }: N0 D/ K3 [8 z$ }) B <statement sequence2>;
9 a8 v0 l# ~) U+ B/ { end;0 n6 v. f2 ^7 a
(2) while <condition> loop0 P% M9 K& z- u% U* C$ [) W
<statement sequence1>; J/ \. }$ z$ d) X |$ v0 G
end;
# b3 Z1 z4 R1 {' ` (3) repeat
& }8 \! M8 R1 D, a4 M# W7 \' y <statement sequence1>;
5 l* k3 ?8 ~5 y$ A until <condition>;
+ L" ]0 U& w$ R2 r* O( Z (4) for <condition> to <condition> loop6 M% @, f7 @' b% t1 P" \
<statement sequence1>;
5 p- P4 m* a. I* F7 q next;
# V" O2 N! j. c; L" m1 R3中断语句
1 t7 t6 r) }" p$ @5 _( O, O waituntil <condition> prio <integer expression>;' e2 w5 f! a: N6 _
7 `; R3 F# S3 g- l% I. o* D" e
, i' |1 V6 d; H6 d. c& _3 @( }以上为常用的函数！1 Y- z1 f& E P5 B4 I/ z
还有很多，如有需要我把资料发到你邮箱里
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