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发表于 2012-11-13 08:48:12
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1判断语句
$ B8 e& ~ B" a if <condition> then
5 h3 }. S1 b5 N. H2 ?1 w <statement sequence1>;* Q/ n( n4 {3 N+ \# V
elseif <condition> then
" O% c3 i& c5 Y( Q9 g& P <statement sequence2>;. v, e9 T' p2 Q. \6 [5 N* z
else 3 Z, i, N9 l( U7 u3 ^
<statement sequence3>;
& b' D9 q0 k$ @, u/ w end;/ Q+ D! k j. s4 b' T" d4 r
如果分支比较多，用：
6 X9 ^: c+ b; U; r9 u$ v3 Q inspect <expression>
6 W) V5 v* o$ q7 [ ~+ h when <constant_list> then9 n# L- p# d2 K& f6 @$ `$ d
<statement sequence1>;
: \* {7 q* v. p! p2 y2 y when <constant_list> then6 C7 L3 u# n5 H+ r* `8 K% s% G' @
<statement sequence2>;
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else
( S, V( \$ G/ t" h! [ <statement sequence3>;
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. Y0 ]: r- A) {: e2循环语句
+ Y% |3 X, F( a0 l (1) from <statement sequence1>
' }1 S" O' E" k; h% P; V until <condition> loop
' ]- u& m! q3 B' H" m' H <statement sequence2>;* B1 W2 v- j9 N8 L9 y1 |/ w
end;
: x; W, _* b. \9 A. N( b (2) while <condition> loop0 e7 g% V1 t7 O3 c
<statement sequence1>;
: @7 _7 \0 ~& N; ?5 r! J6 s( ?2 H end;
3 m2 \! F* ]; h9 y: N (3) repeat 4 J$ F# x+ i7 ^; J' c' }4 ^
<statement sequence1>;
1 \+ l* m0 j. |& O- Y* j until <condition>;
0 l/ T5 Y6 d" w' m (4) for <condition> to <condition> loop- x8 y. F. A2 {
<statement sequence1>;) W. u0 J: L, A, b8 G
next;
; J/ O. {5 d4 ]5 ~. C: Y4 |5 V3中断语句, B4 A; Y& m5 I# @- s7 }3 c6 Z
waituntil <condition> prio <integer expression>;
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3 q4 p+ e- `, n" k' F0 u; H" b) X7 P以上为常用的函数！ F8 Z1 G' W# h6 L. G+ a
还有很多，如有需要我把资料发到你邮箱里 # j/ D9 j4 j, ~3 m" Y8 y, f
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