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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
; n3 y. \9 J' D+ \3 ]$ k( h9 p( O7 V if <condition> then
" p2 k S# t9 l0 l% g <statement sequence1>;9 M7 E# q" b+ A& ]# T
elseif <condition> then
' @% @+ H* ]; s( K, K4 r G2 w; Y <statement sequence2>;
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<statement sequence3>;
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如果分支比较多,用:0 i/ K* j# V, @# c# f, ^' g
inspect <expression>
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<statement sequence1>;/ T, s2 b& i v, F! `
when <constant_list> then
( Q$ a" p2 M P; g. v; H: Y <statement sequence2>;
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else& u. Y! B! C( }' V3 I
<statement sequence3>;
+ \, A4 k& O- e3 X. e( U& Nend;$ U* P3 `- [& P0 X5 n: b
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2循环语句
$ U: E* K; @ x3 T; ]8 ` (1) from <statement sequence1>5 ?6 n) t' O/ @$ ~2 w( u! k# m% Q
until <condition> loop* Y' G) i! ]: Z2 d* u. S& a
<statement sequence2>;
c9 I+ b# e4 i# G end;, `8 M* A) h) M1 a# P
(2) while <condition> loop
0 c2 \: n# m3 A! B- `: | <statement sequence1>;
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(3) repeat 4 Q! ], p8 L! a7 A
<statement sequence1>;9 ^& R' z- k$ L. d0 P
until <condition>;: d6 T5 [* E& J& a# r
(4) for <condition> to <condition> loop
' a \9 G0 {. L( x2 G0 \, } <statement sequence1>;
! T8 y: S* n- u next;1 C5 q. h& [0 L* O' w
3中断语句# R7 I- F5 L, x) g
waituntil <condition> prio <integer expression>; b( q( E+ Y* P; b
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以上为常用的函数!
/ X. d1 ^+ p" l7 |; e% v7 [1 o还有很多,如有需要我把资料发到你邮箱里
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