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发表于 2012-11-13 08:48:12
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1判断语句7 k. b3 U( \0 u
if <condition> then
8 a/ ]& v0 t7 V0 ~: u& e% X/ G. j <statement sequence1>;
4 }9 j$ W( J, M' u: F8 p& i elseif <condition> then
$ D3 g l! k; A <statement sequence2>;! l$ w/ D4 u1 C3 b& E2 G z
else
- r9 [% r4 K1 y( @5 P( U5 L <statement sequence3>;
5 g1 h( c$ E* B2 ? end;7 G+ Y9 Z' ?4 e6 Z$ i O
如果分支比较多，用：1 c: g9 K m( o# J. e
inspect <expression>
( z; H& G4 b5 d' e9 x% V when <constant_list> then' ~; k. y/ I/ F" J
<statement sequence1>;9 `, J, w" `7 _" }" m
when <constant_list> then
# u2 F) ]+ t2 }# X- t' L <statement sequence2>;* @. y* ~$ ]3 x+ {( P- [
...; h8 s" I2 _% w* M: R3 f! z9 [
else" |8 K& y2 j3 O8 W# N
<statement sequence3>;4 _8 ^3 z' f T3 D `
end;9 Y1 d% t% v! N# ] S8 V
" Q* o; o2 ^0 {- a3 U! M ]5 U2循环语句
) q+ U7 W y. K (1) from <statement sequence1>: E* y( {5 |5 o- F" K0 n$ ~+ H9 F: x
until <condition> loop
7 D4 t8 x4 G D0 U) K+ c <statement sequence2>;. Z2 i. S- H1 p+ D
end;
6 ]# g6 `. N' J3 F1 N& U (2) while <condition> loop& |' A6 S" W1 p
<statement sequence1>;
+ Q9 E- `) Z q# f end;
+ z( C' p- \& n/ j' E (3) repeat % d2 p1 A1 O$ z
<statement sequence1>;
/ s" e) O2 ]5 U+ x until <condition>;
/ I& X" |* d8 Q' ]( y# ] (4) for <condition> to <condition> loop& E# ]; `4 \* l8 F: F
<statement sequence1>;
# `9 b9 J n; { next;- m4 V) y, w/ e3 i1 X/ t
3中断语句
2 M; b2 |4 ^$ n) O3 E# c waituntil <condition> prio <integer expression>;
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以上为常用的函数！0 }" Y5 Q7 c. m+ t y
还有很多，如有需要我把资料发到你邮箱里 : L8 i2 z0 r4 x2 s* i% D" v4 m
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