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发表于 2012-11-13 08:48:12
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1判断语句 D4 L. `) k) V; f$ f. l& }5 E
if <condition> then
5 S" H; ]: e' J; U <statement sequence1>;
# _1 v2 H# b" s7 [! `* n: U elseif <condition> then9 x2 `) n9 a1 @, U" }
<statement sequence2>;: Y0 s$ p5 A: Z: {$ ?1 g
else
& w1 Y! x {. z3 p& Z7 ]6 g" S <statement sequence3>;
* W( ~* ^0 u: T end;
* @. f* p+ O) P, p6 h# { x' Z L2 ~如果分支比较多，用：
" U0 |- v* Q% f1 e$ ~, f/ u inspect <expression>+ A, Z; N$ z- x6 _, t* g. d
when <constant_list> then4 z) j$ E' | R0 z' g
<statement sequence1>;
1 p- @9 o. B; R4 Y+ Y- ^# \ when <constant_list> then* X( t' n+ B+ v. E. r T- ^9 m( @
<statement sequence2>;
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else- G6 w I7 {; ~: g7 l8 k0 w
<statement sequence3>;
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9 E6 K8 g0 r E( m8 p2 U2循环语句
6 ~5 d4 S' [2 H. |7 N$ O (1) from <statement sequence1>
0 e$ Q" S5 i' W' \* ]7 z# R until <condition> loop$ U/ y1 e8 d. P: @
<statement sequence2>;% z. }( }- K6 G, q
end; k4 ?. ^2 H. P
(2) while <condition> loop2 f; P l- C$ M( k6 N4 m# C7 _
<statement sequence1>;
! R9 A0 s) \ l% _, A( \) s" V1 \ end;& z, A$ r1 E2 e2 f h2 q
(3) repeat + F w+ j; ?+ P0 O" a
<statement sequence1>;# r& l( {/ R, B+ u! }) }% R! @- y' }
until <condition>;
0 I" f, c2 H$ c1 p (4) for <condition> to <condition> loop
& v% _( t) l0 J) f <statement sequence1>;! x0 ` |; [# u$ ]5 X9 W
next;
6 A9 T1 d' R, K6 P8 S5 ^. T: ~5 {3中断语句
- _6 z( G9 F% g! i5 F& i waituntil <condition> prio <integer expression>;
7 m9 q6 D5 ~; y. [: ^5 I3 g* }0 Y4 }- h. i. P& F
9 }* J* S5 a+ O5 m以上为常用的函数！% D' N; L( v3 s7 A
还有很多，如有需要我把资料发到你邮箱里 5 S" ]& N1 j$ w" r, j: w7 A) C( p
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