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发表于 2012-11-13 08:48:12
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1判断语句$ P3 _4 N: ^2 X# o- J/ J g
if <condition> then
/ G$ K( n8 Q& E7 x <statement sequence1>;
2 H" n- d W9 n; r elseif <condition> then
( E- y2 i6 s6 W1 u( X! o <statement sequence2>;
, x5 m: t' _8 ? else
0 {! |2 ?" c, Q5 S7 h! d/ K <statement sequence3>;
6 k2 E5 @7 T6 d% L+ T: ] end;
7 H: l( w" i1 U2 M2 d0 a( i如果分支比较多，用：
$ K7 d' `# s% G2 y0 F inspect <expression>
; r6 i! Y, a$ E' ^ when <constant_list> then
: Y6 g4 p6 c" F/ R2 \ <statement sequence1>;
! S* v8 d+ h. L- ?, ~" @- r1 ~ when <constant_list> then3 U8 @8 P/ \4 c
<statement sequence2>;+ d; i3 b8 q& y( w0 R, ~
...
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<statement sequence3>;6 V# v5 Z/ V8 Y5 C1 \
end;
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2循环语句4 j9 c8 m+ k! [# z0 }
(1) from <statement sequence1>
1 ^8 w! f/ s! ^4 v- m7 M until <condition> loop a9 J: F9 D8 j2 _# \; |
<statement sequence2>;8 _! B/ X2 n; z4 C- m" G
end;
4 `8 y* y: L5 ~* }+ m (2) while <condition> loop
, a! z- r0 v- y <statement sequence1>;
+ h1 R+ Y6 }" l" v end;
" j) m# x! E( a9 N D. m (3) repeat
( H# I* U5 ~: I" F% F <statement sequence1>;
) F$ H1 e. {) c$ u until <condition>;
6 t6 G7 K& F' \1 X- } Y, f% ] (4) for <condition> to <condition> loop8 z/ ^5 F5 Q; c1 ^ I2 ]: H' W
<statement sequence1>;
6 O% g4 O. o. g' u3 c5 H5 ]6 m! k next;% M6 E" F3 j/ K
3中断语句
7 ?: g R: s6 O1 A" Z; x waituntil <condition> prio <integer expression>;
8 L* R9 B- d+ o' J+ W# N& ? F4 P) j9 w
& _5 o% X6 f" D' p; f
以上为常用的函数！
4 }3 w- X6 g& R: q7 F1 f: W0 y+ V还有很多，如有需要我把资料发到你邮箱里
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