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发表于 2012-11-13 08:48:12
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1判断语句/ x, J* H: I0 U8 Q6 \6 m
if <condition> then
8 i, i8 G& h7 m8 r5 t <statement sequence1>;
2 T& ~2 P1 i! r; a elseif <condition> then9 ]/ [! o8 G9 n5 F& `
<statement sequence2>;
, X' F+ R' y9 H* y c) i else
@( A: o" F& p7 M <statement sequence3>;. W- |* w1 _1 K* G- Y' B# P! K
end;8 j, b, K$ h# d
如果分支比较多，用：
" r6 A! v5 I& K inspect <expression>
D, d# |) l# d+ a3 C/ u6 a3 B when <constant_list> then
1 i6 L& V5 }! I <statement sequence1>;
, @3 S+ Z6 ^' `6 x when <constant_list> then
. j+ g# b# Y" [, m <statement sequence2>;, y4 ^9 X( V5 m' [
...
4 Y9 d3 |; r; T. e( e1 e else
4 \( g4 f5 t' Q) X1 i( L <statement sequence3>;: X/ M9 D' D' L8 `
end;2 @3 }! u5 s/ f* ?
" F% C7 ]; ^: z" U- [# F, u4 u, F2循环语句. f% q5 z" b8 b( r
(1) from <statement sequence1>
, Y# c. a8 m a' `" n0 i( E1 P until <condition> loop2 ?/ q( \( l3 a! s# T
<statement sequence2>;
; y4 ~/ h9 ?/ _- ^' z3 b( t end;% g. g( E! u: ^) s) M
(2) while <condition> loop
' s4 y( Y' v6 k! y# h <statement sequence1>;
% {8 H! ]5 N% j% U* W+ i0 T- O end;
4 t z4 V8 H4 ?6 @ (3) repeat
. u- [# Z( F% a5 D, G2 f <statement sequence1>;8 Q( S& _* y8 i: J; N u
until <condition>;
$ N* W4 M' w! ^; k: M% B (4) for <condition> to <condition> loop
1 g# c7 r( [( d& q' L8 H, X% D <statement sequence1>;! N1 r' C; {, _5 c" l' T
next;" p$ l! C/ ?5 u% l9 W9 \
3中断语句# D1 Y5 i, g- I6 M6 x
waituntil <condition> prio <integer expression>; C$ p: x' N: @2 J% S% q. |
$ f. ]% T8 u/ \ J( H. u
7 B7 E+ n: U5 J& q以上为常用的函数！0 A, L6 u( o7 _2 o6 A' u9 \
还有很多，如有需要我把资料发到你邮箱里 ; x7 W F# M+ S" N) v7 M" L
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