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发表于 2012-11-13 08:48:12
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1判断语句, H" Z$ e) }6 X5 e" F# n9 T
if <condition> then/ V% Z1 D( a8 S
<statement sequence1>;7 C0 \3 {) c9 ~5 B
elseif <condition> then
9 T* W8 `8 m% P8 ] <statement sequence2>;
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<statement sequence3>;
! K5 A5 T* E! m( E' n1 N6 N( c end;
. a$ l+ |. j( b [如果分支比较多，用：
+ q, z0 D$ y6 J0 ]. q: O9 ^ inspect <expression>) {% y& J) x: b& F! N' o. \
when <constant_list> then
' r0 F" g7 { J <statement sequence1>;
7 l, I7 j0 O2 g6 h4 T# v& i when <constant_list> then6 J! z3 o. m9 D u2 S0 K; ~$ i
<statement sequence2>;
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else
( n( O$ [) z8 Y9 S5 }, R6 F3 Y <statement sequence3>;
7 H# v! H% L0 y- R- [/ |end;
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2循环语句$ W# a5 ^! E1 f3 m5 l
(1) from <statement sequence1>
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<statement sequence2>;
4 e( ~4 o$ m# a6 j5 \+ \- o end;; I1 e9 R4 a8 g/ T6 }1 `
(2) while <condition> loop. j6 M. _& Y2 S1 D; y+ k8 P8 C& Z
<statement sequence1>;
3 |3 S$ K* ]( Q" s- v end;
T9 O+ W) v% L- z% u" x& X (3) repeat
: `6 D" |7 D' ~ <statement sequence1>;9 C6 O! \% ?; [: Y8 T" m ~
until <condition>;
2 D7 _+ m, D U% u, l" q) F" z! L (4) for <condition> to <condition> loop3 |5 A4 S) _+ h5 B
<statement sequence1>;
$ e; R; |( i7 q V6 p5 W, d: r) Z next;6 s3 W# s: R+ ^: _0 {
3中断语句- @" w* {5 e. Q3 y
waituntil <condition> prio <integer expression>;
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3 ~ ^6 q; _1 z! H1 d& g以上为常用的函数！
$ Q( ]/ o- U6 `7 @. u: q" T9 Z还有很多，如有需要我把资料发到你邮箱里 ) Y( C J R1 y. H) Y
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