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发表于 2012-11-13 08:48:12
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1判断语句
( }8 a& @ |) d) o( h7 R if <condition> then
7 c" k, Q, n- H/ V' Q% F9 V: |2 a <statement sequence1>;4 \" d! e; a5 d: [: e+ H. J
elseif <condition> then/ B- e1 Q r2 T) z
<statement sequence2>;
: M7 i2 j* O h0 ?: A% A! w( a else
- O" h( |/ n6 b" _ <statement sequence3>;
" Z w2 E. R% {5 Z end;: t/ \( s4 D$ E
如果分支比较多，用：; @$ T8 Q5 X! f! z4 g
inspect <expression>
1 s0 m7 ^( k/ y6 [1 J( Y when <constant_list> then
' ~6 Y+ O: ~& [5 X <statement sequence1>;+ f. Y7 O5 i0 S$ i2 c+ _5 `
when <constant_list> then
* H. I+ l8 b! D' o+ }9 Q <statement sequence2>;
- b+ O I8 N. @% \& K/ ^0 C ...
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<statement sequence3>;
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3 P" q H# K% C0 o/ `2循环语句6 R: p, Y+ E2 F9 }0 Q/ A8 r' D! Y
(1) from <statement sequence1>
5 d& h* V. \3 K/ r until <condition> loop
/ p O( l, D ^9 ^ <statement sequence2>;0 O3 [/ j3 {7 _# u" \4 Z
end;0 g6 U. G8 J7 h9 ^
(2) while <condition> loop
G6 }1 z' m: j' d <statement sequence1>;
) J2 n5 ?* k8 A$ I2 @ end;& M9 b. I t$ o5 n6 p$ b1 R Z
(3) repeat ! v5 p7 Z+ n% I F- G9 Z" \
<statement sequence1>;( f: `8 }; B$ a' @' h( Z
until <condition>;! `$ I- Y, R- R1 D, @. }; b3 l- x* |
(4) for <condition> to <condition> loop
8 ^- }/ j9 \( c D <statement sequence1>;6 H7 c& t$ I+ W3 \9 f! T
next;
9 s' k+ n6 v1 T1 h) D( a. k3中断语句& F8 {6 m3 N% R* i4 z. W# J( `
waituntil <condition> prio <integer expression>;
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' A/ z# @& o% d! }- x2 H以上为常用的函数！( X2 r! t+ F, z5 x+ R4 | G
还有很多，如有需要我把资料发到你邮箱里 ) |, b8 z; Q( K( S! s$ o
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