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发表于 2012-11-13 08:48:12
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1判断语句7 G+ u1 n- i7 v9 T
if <condition> then
' M% |: m2 b: J: f3 |8 y9 o <statement sequence1>;
9 j. T3 x/ s; `6 [6 a) k elseif <condition> then
+ a0 m- Y! q$ H) e <statement sequence2>;7 H- N3 {/ V- s7 h4 K1 O
else
' U0 z7 ~" @# y% q <statement sequence3>;% J. O9 H9 p- p H. j4 G) h I
end;/ {" [6 Q ^2 l2 R! o! r
如果分支比较多，用：4 V- a6 L! z4 }( M+ F- Q* U
inspect <expression>
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<statement sequence1>;
2 P1 [& u% o) d/ H% n( u0 S when <constant_list> then
' d- s) _) R' E3 g: O) C/ A9 x t9 f <statement sequence2>;0 ~2 P& C% j6 i9 ]
...
4 e1 G2 h- N2 F j6 G" b else5 w1 Q9 j( \* |, Z1 ~2 Q# }' l
<statement sequence3>;
( r- |! S5 ?9 r6 ^7 F" S! ?# V) kend; k' S" p3 ]* p
, ~3 S/ A+ T4 L9 B2循环语句+ L# s1 i/ ?: d% e
(1) from <statement sequence1>
: N6 L( _( X8 x& B until <condition> loop
7 Y4 t% m* F! v" D <statement sequence2>;- Z& J, L! D. P, W/ E! ], ~& i, }
end;
( z/ X/ T' W9 X* n6 X1 \ (2) while <condition> loop5 w, |7 o2 x3 T9 m2 B4 v! j$ `! Y; `
<statement sequence1>;7 [3 ?# t' z9 i7 g- y
end;
+ |4 X0 e, B5 D N (3) repeat * W, e5 f7 k J+ W) Z
<statement sequence1>;6 T7 L2 S# f8 ?4 E- t: w
until <condition>; X8 X8 B5 g: k* d0 S
(4) for <condition> to <condition> loop
6 W% D6 k' D, J. m1 K <statement sequence1>;) z6 n2 D$ `# ~1 u. P4 t5 H) R
next;
# t- S1 V {: Y y& }' H3中断语句
5 Q! {' u3 F9 Q. I `6 C& [- y5 D% y waituntil <condition> prio <integer expression>;$ _& F2 }' N' b4 d# p
( e2 P3 p# F2 P+ Q& [
9 F/ ~% T/ G' C) ~% K) D7 r以上为常用的函数！! S3 h: @1 E a8 V; _# C. I
还有很多，如有需要我把资料发到你邮箱里
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