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发表于 2012-11-13 08:48:12
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1判断语句
9 a8 R- ?7 v. a: q; t3 b if <condition> then; H# S% M0 M) w; u- @" [' q
<statement sequence1>;
* n& _1 } v) J/ U9 V elseif <condition> then6 v6 c8 L9 r6 E( n
<statement sequence2>;; Q. a- d& V Z* f- p* c n- {
else
( y/ y! U! l$ T1 y. y9 D2 T q) g# q <statement sequence3>;
8 {/ L% C' y) L7 h5 ? end;$ w. _- A- ` G% ?$ d4 G7 z
如果分支比较多，用：
* N2 `7 j, |/ ^ inspect <expression>$ u0 [( {8 N% B' n C# v
when <constant_list> then
9 H3 A( s0 [ ]+ O( j <statement sequence1>;
+ M7 V5 [" I% c: s! q when <constant_list> then6 J* c- n: k8 `3 x
<statement sequence2>;$ I) ~0 w4 M! H2 g
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else
4 ^& v! T; A* S! q- e- x# X5 \ <statement sequence3>;
' U2 N7 N# Q* a( v, Fend;
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2 R$ d1 G& ?& c& v4 {; P2循环语句3 e/ l; i# d9 d9 R- g: D, l7 u
(1) from <statement sequence1>
D' o2 {. ~/ G until <condition> loop
* P" q+ u+ R5 F5 R. i! _/ x <statement sequence2>;7 d0 `" V$ B2 Y5 ^' d5 S3 S9 C0 v
end;4 b! b: v! m3 ?
(2) while <condition> loop
% c& V% p# V9 ?* b# _ <statement sequence1>;
! A9 w( G# c7 x r% F: f# I end;
& L& l5 c4 b9 W7 R9 g* p (3) repeat
9 [) D; s. G* l+ F" I <statement sequence1>;( n( r+ s) E2 Y. D3 p
until <condition>;, ~' ~5 p2 ^0 o: h
(4) for <condition> to <condition> loop- c3 c1 }# \! A% t$ Y0 y; t6 l
<statement sequence1>;8 {# ]( ~4 H5 x: R
next; w( I4 N* W: Q& {" T) z; P
3中断语句& j$ B( @' \: }+ T3 Z' K, ^
waituntil <condition> prio <integer expression>;) n* |6 o" b' f4 u
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以上为常用的函数！+ A& T- _9 w! e% h, E: O- `
还有很多，如有需要我把资料发到你邮箱里 , I1 X( B, Z' _& E
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