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发表于 2012-11-13 08:48:12
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1判断语句7 _/ U: T0 P" s; g+ |" B5 J% ^7 R
if <condition> then
, \3 ]0 a1 D) D+ W <statement sequence1>;
$ ]) f4 ^* f% B7 y. m elseif <condition> then; O0 v' a; z5 Y& w$ p# n
<statement sequence2>;0 o9 H, h& \3 p+ Q& z
else
' F3 t2 T. Z8 p9 h& h <statement sequence3>;5 d3 i% I% t$ b7 N, S- C/ a
end;
9 k: ^2 `4 s# h) }5 d0 s5 s# q如果分支比较多，用：
- l9 R/ {. Z2 c; T4 P9 \ inspect <expression>8 b7 `% } U- e7 D; T
when <constant_list> then E, O2 ?, s B6 `
<statement sequence1>;4 R" H& u" a; W% u5 I- D
when <constant_list> then! n9 e9 Z. c5 F
<statement sequence2>;
( _6 J* T/ v$ P6 |- W .... u* O5 { Y% p
else3 l4 t( ~- ~/ _# y$ G6 u
<statement sequence3>;
7 G* f$ f; Y0 R# Rend;
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$ w4 r. M. ]' X1 s2循环语句2 `5 {7 I2 Z! j) G6 C) g4 t
(1) from <statement sequence1>
: Z( {8 a7 ^# X3 }" O a until <condition> loop
$ b7 t' U+ m) |3 m+ o <statement sequence2>;1 u/ M2 N/ Z: V) R/ Y
end;$ q/ z1 J: |) ?% W S& `
(2) while <condition> loop
. u m9 O4 T6 t% A3 A <statement sequence1>;& B/ Y( a" e! s8 v Q! ?
end;
2 G+ i" m4 q' B6 P% r, b (3) repeat
$ R0 e6 ]& N% V ^ <statement sequence1>;
1 R0 z. I3 q5 \ Y) Y until <condition>;. V) s) @2 D, i* f8 H. J
(4) for <condition> to <condition> loop
2 _: i. L) V7 L0 o <statement sequence1>;+ r t; v5 P% _- W1 _
next;" \# S% H- h& f3 D0 m: @
3中断语句
& H+ `) J- Q9 N4 O waituntil <condition> prio <integer expression>;. w; A) M s ?4 V; W' @; e
4 p" F# u# U8 v5 u( R s& ?# w& n* Z5 H( ~8 U7 A8 z5 `
以上为常用的函数！
1 y8 x6 g& a% m, k; D还有很多，如有需要我把资料发到你邮箱里
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