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发表于 2012-11-13 08:48:12
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1判断语句6 L9 q7 K: k/ m8 u1 F! V. O* w
if <condition> then
, c2 i' I1 A. b) b2 v7 ] <statement sequence1>;/ y! V$ v" w; l. D
elseif <condition> then3 `+ j6 J( S* J* M. B8 t
<statement sequence2>;( {* X, w+ S# v/ W- K% q
else 9 [0 V- X" @4 F/ `
<statement sequence3>;! Q; j8 R% n$ f6 h/ o
end;% O4 `9 f1 R; ? u
如果分支比较多，用：
8 e, D5 x: d+ N5 ?6 R inspect <expression>
$ k3 Z3 i% p! l* m( _2 V when <constant_list> then
( r/ H; J+ |* G" V' u9 y0 P; n <statement sequence1>;
& u, N4 h; }' K0 R- ] when <constant_list> then) e) J# }1 M3 z
<statement sequence2>;
. K V- l) Y/ L" _3 x1 W ...
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<statement sequence3>;' w; L$ d7 A. I' F
end;( R2 b4 [# R6 `* ?( A) Z# t
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2循环语句
9 B- v b3 J! x! A5 u (1) from <statement sequence1>
' s# w" s- l0 M0 A, S5 T until <condition> loop- [6 w( }. N7 S
<statement sequence2>;8 ~$ H& n" j6 y- \: _( N4 z1 D
end;
. g, g8 W$ z& |& q5 S5 ~: k) w (2) while <condition> loop
1 f( a7 o( L" V4 [ <statement sequence1>;3 ^4 D$ A# x+ S N' D
end;5 C5 o2 {6 L0 X! l/ q
(3) repeat * q/ |; c1 f$ y7 n; g9 X) }+ k
<statement sequence1>;
2 K# e8 r* h$ Q1 E8 g* [5 z& u until <condition>;- J" i! h2 A0 K0 a
(4) for <condition> to <condition> loop! R8 I7 y9 |& j1 ?; ]
<statement sequence1>;
$ _5 q# v7 b; m, K4 w next;5 E9 L" w& ^5 l* d) `
3中断语句 ^7 P9 u1 O1 J( w% `
waituntil <condition> prio <integer expression>;8 J' `, R, G8 C
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以上为常用的函数！ l: l$ s4 w" v; l' ], h
还有很多，如有需要我把资料发到你邮箱里 & X' w0 A; x7 k9 ?! a' u, O, X
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