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发表于 2012-11-13 08:48:12
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1判断语句! K5 L" ]) B t8 A
if <condition> then
2 [7 O$ \3 w8 D. D2 p& w# @$ K <statement sequence1>;0 x$ N8 \! @4 K8 N
elseif <condition> then; h: O& b6 y+ N _8 z
<statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：
( B2 H7 h y( f( E x inspect <expression>
+ C. Y' h7 S! i1 e when <constant_list> then
0 {4 e/ v5 y" g( u <statement sequence1>;$ d6 b2 [' r# E+ U, Q3 v6 y* c0 c
when <constant_list> then
9 A- y/ {, a& Y$ K& S& v <statement sequence2>;
; W0 a' l& G0 ^3 J; i ...
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<statement sequence3>;
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8 H& T4 x: S0 m; ^6 t2循环语句; j6 |/ s& g. L! [# k/ ?
(1) from <statement sequence1>
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<statement sequence2>;. f3 ~& y/ z/ F2 B
end;
( C4 l6 n& ]0 m0 k (2) while <condition> loop3 a$ _0 E7 I# a- R* R( _+ D
<statement sequence1>;5 I7 I( s& X# s
end;! u) p5 `" e" {; |' f
(3) repeat 9 h. P s4 {4 U3 ?5 j7 d' z4 R4 l' z
<statement sequence1>;! U, [# U9 A# D* }% [$ ~* g1 Q
until <condition>;
" f: d: K; k/ {5 C/ z, \, z% c3 h4 X (4) for <condition> to <condition> loop
/ P1 F5 o5 v: E5 [! x' r <statement sequence1>;
4 m* V9 x2 U1 M next;
- I( k9 [" f& r: [7 }3中断语句
& @3 |& A5 v; y& m/ I waituntil <condition> prio <integer expression>;
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以上为常用的函数！
. [: D2 Q, n; e8 G7 _还有很多，如有需要我把资料发到你邮箱里 ' X# }: }& r) o( W
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