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发表于 2012-11-13 08:48:12
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1判断语句* m; M6 E; p% x3 [) F
if <condition> then/ ^! S- g6 P6 e- f2 n* Q4 P% H) V- u
<statement sequence1>;. f a2 D& F/ ^- D
elseif <condition> then
+ r2 r2 M( y* X$ U <statement sequence2>;
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<statement sequence3>;% ?4 M* ?+ I3 I0 {8 _( c$ S
end;2 `# ~" i6 I! m9 b+ @
如果分支比较多，用：
0 _ [0 b. f% R& P0 z7 D inspect <expression>7 f$ d( d& P2 z% ?/ J
when <constant_list> then! ?6 ^" \0 \ `
<statement sequence1>;
( h: `& z" q+ p6 Q! ~ when <constant_list> then H- X0 I8 n6 m* k% B1 w
<statement sequence2>;6 Y# {% a; L* V0 v H9 c5 ]5 U' R4 L' Y
...
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<statement sequence3>;" D$ O( M* g m# t" t
end;
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(1) from <statement sequence1>
0 I" q# x' n8 ]& c until <condition> loop
1 v4 b! s2 |* _; j+ H g <statement sequence2>;
* g* o% a5 C* ~6 ~, Q- c. A% j end;
, { E( L1 k b" g (2) while <condition> loop
" w% s. J+ [' S <statement sequence1>;! q3 [2 {% w0 `6 t
end;
; z* g' n: X" ` @: v7 y (3) repeat
+ ?/ I; q+ A6 H4 k7 \4 K( Q& v4 k <statement sequence1>;
* e; c7 h+ k8 i; V6 U until <condition>;) |! F7 K* M) G- d0 G
(4) for <condition> to <condition> loop5 r% ]' ~* m$ A' }: w* j
<statement sequence1>;; ?, `3 j+ ]; _, a; V- n
next;
9 _, S! @$ @8 K2 v$ }" Q/ y3中断语句
4 W3 g3 c0 }: ^ waituntil <condition> prio <integer expression>;8 D; p# E3 I# q0 O: Y' b
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以上为常用的函数！) | N+ ]3 T: c1 E- H* x
还有很多，如有需要我把资料发到你邮箱里 / ?5 S& s) k3 _& m m7 T' L ?% H
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