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发表于 2012-11-13 08:48:12
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1判断语句
' {& q( h1 |. { I! s, z: g- {/ f8 _8 x if <condition> then' `! E, A* A, U# r" V8 L. ?9 Y
<statement sequence1>;
( A z6 ^! x: @ elseif <condition> then8 z a9 ^4 h* g; ~
<statement sequence2>;
4 p3 k) h5 M9 ?3 Z; B else
* l' |9 u n$ {9 \8 d <statement sequence3>;5 m9 S( v* z* _) F/ l
end;
8 j3 g0 F' o. F; Z如果分支比较多，用：
" E3 i4 M/ s$ w& H" v c o) [ inspect <expression>/ |" {8 B3 m' W' l2 { ] u
when <constant_list> then/ Z' e% Y! a6 y, s
<statement sequence1>;) r' W1 S2 r3 r; O0 d$ B+ W4 b" \7 K3 M
when <constant_list> then
7 p8 E3 T$ @1 V0 [# d; T. w; a <statement sequence2>;# D) p0 e# i! b4 b4 t4 w
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else
3 L' [" M# h& O3 j3 B- j: x <statement sequence3>;
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2循环语句
( {0 e# e) V) a; W' ~ (1) from <statement sequence1>
, ~/ P; N. F! U% b5 o* w, @ until <condition> loop9 Y2 J* ]$ ?3 a0 ]7 d: ]. j
<statement sequence2>;
' }8 h5 n5 k* `3 H0 D! q end;
$ F3 ^1 }, I/ u (2) while <condition> loop
! e* G+ a# P- g: A <statement sequence1>;
+ H& b: O4 p+ G5 M* D s" M( F' { end;
( U. H7 |4 W: a/ u (3) repeat
6 h6 z6 N' Y7 S4 y. G <statement sequence1>;) B0 C Y1 m0 J2 e
until <condition>;; V% x; ?" T& g! v D4 Z3 m
(4) for <condition> to <condition> loop
' ]5 E. F8 M: L( K' n- n <statement sequence1>;( Z9 d2 _* o$ Y6 }. c+ F+ ^
next;
( v D! C( x4 q, K5 c3中断语句8 d o6 T- V& j) m# G; A6 i; y) S
waituntil <condition> prio <integer expression>;( z; O; J" F$ {8 f4 x" s
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以上为常用的函数！; s8 a9 B. g3 R9 }: Q' z0 {
还有很多，如有需要我把资料发到你邮箱里
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