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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; L# t# d5 Q& ^7 H6 \0 a
if <condition> then
& m, Y5 a9 p" i C& P <statement sequence1>;
- a) s3 `% N; r( i2 n$ u: [- p elseif <condition> then. J: x7 p+ _( O2 _0 u; b
<statement sequence2>;+ U4 w: `3 e0 D' |3 i
else ' v- h: B0 C- i& M/ N8 a6 C. S
<statement sequence3>;
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如果分支比较多，用：# n! S& K: f# [8 ~* A# c0 g% e
inspect <expression>
' x+ Q* G( h$ B* C0 R3 x/ B when <constant_list> then: N% v2 f- }( \* |! f) a9 l
<statement sequence1>;) ]" i+ _" A! ^; X- f6 j- Z4 |
when <constant_list> then
. d: a/ K6 p9 P% {3 F <statement sequence2>;, }; E% |9 p/ ^7 p5 |: G5 C
...8 i# r- S& g7 _# \, ^7 b {8 Y) F
else
8 b' L1 Z7 d& s <statement sequence3>;, K# P4 D1 z% ~5 q$ s/ U1 }; q' n
end;" l" I5 E! U% @4 g" u2 M* ]
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2循环语句
2 \! m3 h; |! F6 k (1) from <statement sequence1>
3 A2 i7 x# Q1 E$ a+ l8 ] until <condition> loop8 Y% W" Z* z8 w0 r }: Y) p0 T" L
<statement sequence2>;9 b& Q$ \! l& y B4 g" j: ?
end;
' `) z) u; X2 } (2) while <condition> loop
7 L0 h6 v# z( ^/ O' y6 V! m. J <statement sequence1>;3 s. t/ T6 S. \" L. d3 z0 b
end;# I# M; O( v7 ^, @1 r# H$ `
(3) repeat 1 J T2 Q$ H6 P0 |9 l9 h
<statement sequence1>;
- L5 c% `6 r; v$ u5 Z7 g3 W until <condition>;, a+ x8 N* ]! P) a* N. ]( b
(4) for <condition> to <condition> loop
8 H. o, z. F2 r0 E) ~3 o P" a# o <statement sequence1>;3 w# i5 Y1 z1 h; Y. _+ K
next;
: @; q8 i& @* T8 y6 V6 z% I3中断语句# h$ [% R6 |( v. q5 r2 A+ E2 S m
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
+ P" r$ P5 s3 D! j还有很多，如有需要我把资料发到你邮箱里
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