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发表于 2012-11-13 08:48:12
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1判断语句
5 G' a9 d, i$ D( v6 x) e, F, w if <condition> then7 {, t2 ^/ @) {# ?
<statement sequence1>;
( g6 ^: Q! P2 L elseif <condition> then
7 s/ S" m" u; L+ Y/ @- f <statement sequence2>;
8 z3 o1 D& u0 t5 @& N else
5 i8 |" Z3 \' {8 c8 c# F% _ <statement sequence3>;0 P+ B8 d) T8 B7 T& ?4 G$ v; E
end;
$ U; Z6 |- |2 m如果分支比较多，用：
1 K1 B3 h; m7 q1 y1 w/ g7 l" e inspect <expression>
4 Q9 j5 d0 H9 ^ s" b when <constant_list> then. y) ]' I/ J3 n' x; b A# H: f
<statement sequence1>;
9 x# T# g2 y4 c( x& K5 _ when <constant_list> then
1 O( V9 Q8 {6 w% x& ?; o <statement sequence2>;
! c# v! E6 Z- U( p) g( g ...
5 ^0 M" o0 ^4 |8 ~* Z else
& d0 F! S0 ^* Q @- h6 S <statement sequence3>;
( X5 _0 D7 K6 X: ?" A" s& Mend;
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6 H5 Z! h8 s+ l. o& X* ?2循环语句# N/ f3 m, h& |, W% ^, ^
(1) from <statement sequence1>( i" l, J, `- T) [) j
until <condition> loop- ?& C, o6 I* R2 b [
<statement sequence2>;6 X. ]% D/ _4 M8 t1 j" L; i* n: s; w
end;
F6 }. \4 l* d6 t" |! C (2) while <condition> loop
4 M O J. w1 S) {1 [+ V( j3 j4 a <statement sequence1>;
" h5 [: F- s8 Y7 K4 J& U end;
6 ?6 {6 @: y0 z& O6 h5 b (3) repeat
" A' l: q. v. [" q) p <statement sequence1>;
6 k7 n6 D! C0 d" f until <condition>;
- w. P% v/ V0 f" Y# S' W+ ^+ Q (4) for <condition> to <condition> loop
q! o1 g1 Z' G( Y* V- \ <statement sequence1>;
7 p' X% D ~3 V5 ~: N8 z! [# Y% ~# V' E# Q next;
$ v* j; e/ N9 B" i1 i- q3中断语句
5 S( C1 k$ b6 v+ c- l0 ~! j waituntil <condition> prio <integer expression>;
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5 F+ s8 N; l. |: V g( {
- n2 G, s- J, C" Q$ F以上为常用的函数！
8 a8 W8 l8 i% d, I; y; M, n还有很多，如有需要我把资料发到你邮箱里
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