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发表于 2012-11-13 08:48:12
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1判断语句
0 c- o1 {7 C& p6 f0 r if <condition> then- _) }9 f6 x! ]
<statement sequence1>;
! t9 K, C0 F) I- s elseif <condition> then6 H+ n4 M7 q4 J- z
<statement sequence2>;
4 c w& @" z: g* n else
: s+ d0 X; m: h% f; l; F: [% l <statement sequence3>;
) e- H$ H% D3 O1 [ T& j1 p$ `' n end;
2 Y# p) s v+ Q0 e" a* h3 b9 I如果分支比较多，用：( j. d! ~* N+ {( E; S4 U7 }6 _
inspect <expression>
+ V, L' Z, \) n8 w N) Q* B0 z when <constant_list> then* Q+ ]# v9 B) m% C, ?1 Z
<statement sequence1>;4 K) `: t8 J1 z0 i
when <constant_list> then* U! w) f% I/ d- h/ @7 B
<statement sequence2>;4 _: ]! [* d$ B! M) d
...& A( ]7 I8 \! o) D: `
else
# m( c1 @ o9 E <statement sequence3>;
' V6 d/ x" ^( X$ a. Qend;* i, B( E9 W( b- u3 S. J
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2循环语句+ C/ `+ y4 S. @, o
(1) from <statement sequence1>: F3 b' t4 y0 X _2 F+ h9 s& W
until <condition> loop
+ s$ z* {0 ]0 Q1 z5 ?' ?, K <statement sequence2>;7 e, r5 y7 B( w; s. a
end;
9 p& [7 S7 u5 ^( D; H (2) while <condition> loop* f# [: @. u& l) D% X
<statement sequence1>;
- S! S- t7 R# f5 J" T" k& H end;- |$ x( |- \9 k
(3) repeat 4 k* [/ p$ `/ C+ N6 z3 X
<statement sequence1>;
& W/ D/ H/ ]9 w" h1 M! W until <condition>;
6 C$ Q: {' y% h& N0 Q2 i) j- O* | (4) for <condition> to <condition> loop, T1 `9 r9 q7 }0 W3 [
<statement sequence1>;" K. {% P+ @* O' X1 v
next;
8 j' ^3 W; a1 o! J( Z+ Q" B0 ~3中断语句& t- |; [* ^, k1 H/ y: ?+ H/ x
waituntil <condition> prio <integer expression>;
6 e% {, N% u# j' {6 X3 C, N$ g% q$ Y7 O* X
( O& p; P' t" B2 ~以上为常用的函数！
4 h" c$ j( \8 j还有很多，如有需要我把资料发到你邮箱里 ) y- I8 ~+ I5 U; i% I
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