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发表于 2012-11-13 08:48:12
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1判断语句0 N& `9 M2 K2 |( B3 Y% L$ Z
if <condition> then) _9 P$ p& V+ p0 i. G4 U
<statement sequence1>;
: C& U- c/ ?: s' n5 V$ p elseif <condition> then
0 \( J; t# w* p( [# l( z' P* q0 ]. m <statement sequence2>;
0 A( P( b5 V, G% ? else 4 l) s4 w4 m% i+ x. r% c6 e: |
<statement sequence3>;; `$ Z G: a" N5 r- F0 Z# i8 a
end;
( G% I6 W- _7 i8 ^8 E如果分支比较多，用：6 s4 W) H/ J& v1 b
inspect <expression>- Y t5 W2 C( m+ q# m* j
when <constant_list> then6 m/ e, D" `8 E6 \
<statement sequence1>;1 [) P/ [+ r; y6 ]8 K. D5 }
when <constant_list> then+ T& Y8 w. T" w. U2 b
<statement sequence2>;. \6 k. }5 E; F* R2 E" u7 r
...
0 [& m" u2 c; y else' t" k' Z, E* O+ h9 N
<statement sequence3>;8 _* h# F' y3 O# v# Z; r0 R
end;6 W6 V6 F$ V/ H% e9 z
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2循环语句* h6 m8 R" E: I% S) v
(1) from <statement sequence1>& j. p6 \! G x* ], c
until <condition> loop
. E4 c/ X0 ], Q7 Y# Y9 S5 z& _1 c T' B <statement sequence2>;
$ I; U' S2 Y8 l0 v1 o end;1 ^( D C# Z5 @ C4 b2 b; q5 I1 ] U
(2) while <condition> loop% i+ i! T; W2 {( o) h; I
<statement sequence1>;2 ~) ~% T) @! N- N+ h8 }. w
end;2 X: s$ B5 v- n6 I9 `1 b8 g" j
(3) repeat 2 [' ]% H2 e$ S6 v3 E
<statement sequence1>;
" F$ q$ P5 U, H5 l2 { until <condition>;
- o6 Z4 q& z$ V- A2 a (4) for <condition> to <condition> loop
U# X% K; W) P9 Y. L <statement sequence1>;' }+ P, J* v+ i* d
next;$ T# m8 m4 {! D1 ~1 }- T
3中断语句
6 Q/ g& Y ^4 L( H3 b waituntil <condition> prio <integer expression>;0 p* [+ H9 X9 i8 Y4 T
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/ Z4 M4 r. c1 S4 X以上为常用的函数！) g. L: Y& V# I+ d7 v: m2 F8 ^
还有很多，如有需要我把资料发到你邮箱里
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