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发表于 2012-11-13 08:48:12
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1判断语句
8 ?1 ~6 X" d8 h8 o$ D; M. x if <condition> then y7 Y1 f3 T' y
<statement sequence1>;
1 y6 B6 u/ _ _1 D elseif <condition> then
9 Z! { p* w5 X' z& V5 t7 N+ Q* C <statement sequence2>;, j% {& Q, z1 U2 Q0 F
else 4 U# w/ ?' N( F
<statement sequence3>;
0 d5 G5 c5 P0 R6 l3 X0 g; R end;
0 @, R, k( R' A- R! L A" }+ m如果分支比较多，用：
: f8 u8 @6 }8 N; k- R inspect <expression>$ u2 A& g4 [, p A2 Q0 ]4 v9 D9 C l0 X
when <constant_list> then
" W5 D* a6 Q- K5 c: m, X <statement sequence1>;
6 r* e+ e6 X/ j g% J; m when <constant_list> then
& B7 t% v6 l Z- N0 T* `9 K8 h6 {4 C <statement sequence2>;0 v4 W+ b- t3 E# U
...( n) Z6 x9 E0 w; N* G; t
else2 V5 f* b9 M9 G# o3 j" H, S! W0 d7 p7 k
<statement sequence3>;
0 d; i" ?( U2 m- o2 J. iend;
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2循环语句7 y0 N: y: _5 l+ n& }
(1) from <statement sequence1>
+ G4 y+ }- m( z* t0 x" e+ ` until <condition> loop Q" s" `6 b! I
<statement sequence2>;9 e. z* H; M$ P' p! n# u7 M/ w
end;
0 |5 Z5 p& P# T I b2 e (2) while <condition> loop2 o; S0 H( b* t8 _* Z3 ^
<statement sequence1>;
" o3 `! K3 D/ A* n( ^. U( R end;9 w. Q0 u, ~+ f9 |5 ~% O
(3) repeat
# ]0 S6 A% a# a$ O5 v <statement sequence1>;- _3 M% _, _+ x0 X
until <condition>;( M9 L! g' C; i( H7 T3 ?2 q
(4) for <condition> to <condition> loop
' o, Y+ E. J z5 I <statement sequence1>;* B- R$ c, [7 C$ N
next;$ i+ x# i+ h: r% W p6 A
3中断语句# w9 i( X- k# Z/ f1 o. q" h( X: x
waituntil <condition> prio <integer expression>;
: x; N8 R4 {' V* G) B" ?
% m5 C( y3 A3 r0 H/ L W( \+ F* _3 {% R+ ~
以上为常用的函数！
9 K. V: n0 z& x/ m0 Q9 t8 ]& o% T还有很多，如有需要我把资料发到你邮箱里 * W, j; G9 t9 s# M- s6 v" R, s
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