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发表于 2012-11-13 08:48:12
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1判断语句. s5 k% n9 r8 L
if <condition> then5 Z$ J8 E& w6 C- X9 A8 ^# {7 `9 t
<statement sequence1>;4 `2 R! o$ T& n ?) h# K
elseif <condition> then# j% y! g/ z( A1 a
<statement sequence2>;
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<statement sequence3>;; y" P7 c- \. x U3 ?1 Z
end;
& I8 G6 Q h1 I( F7 j4 x7 M! p如果分支比较多，用：
+ u0 m; T: ~0 Q6 J1 B4 n! C inspect <expression>
7 }1 j, m0 T- d) V* S when <constant_list> then
% q9 J% Y. ?" ?9 i: z7 o <statement sequence1>;1 [+ A7 H, u+ @; r) J7 U6 V- |
when <constant_list> then8 R6 T7 U2 Z/ g
<statement sequence2>;
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else- S5 H3 V ~* f8 D3 u' n% u7 F* @
<statement sequence3>;/ @2 p8 A! f& k. |' S
end;
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) c/ K& V: @! b7 U- U' R2循环语句
2 [/ j7 v5 R' V- T& y2 W d( Y (1) from <statement sequence1>7 ^ m: i m4 Z! p# a V- Y
until <condition> loop
; G) a/ I2 k% \0 F. {. N <statement sequence2>;
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(2) while <condition> loop
- R8 M+ x2 W K0 c# E! `0 p <statement sequence1>;
- h4 r& f$ D2 M" v end;
$ Y, R# G9 d' ]) n8 ^" h1 u (3) repeat / Y. z* T: X. x6 X: ]% r
<statement sequence1>;- {) R+ k- Q. [8 B3 W
until <condition>;, m8 v7 ]5 u d0 o) E
(4) for <condition> to <condition> loop$ P8 J" l! R4 N N6 H) {
<statement sequence1>;+ g. \4 t( k4 F- {8 g" c: g
next;
! ~( L- ~- t5 G. {. z3中断语句
' X0 v r" ^2 E2 _9 I waituntil <condition> prio <integer expression>;
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. s' [% z& e9 K& d/ p4 {以上为常用的函数！ c" L. Z, @4 P: ~5 k$ P
还有很多，如有需要我把资料发到你邮箱里
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