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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
4 s3 X' h% t( S- M" M7 h if <condition> then" X, c# |) e' U, E2 a+ d
<statement sequence1>;
4 I2 K8 u2 N" h- p" U2 d. U* @ elseif <condition> then
6 @- [! F, p& G; H2 V, H <statement sequence2>;
' j4 H( [1 i( m! @1 v( j$ ? else 1 L4 k; }8 R p6 B5 l! K5 i
<statement sequence3>;
7 \& T/ e+ b4 Q0 b* a9 |8 l" s end;2 E. B& Y% {7 e
如果分支比较多，用：
' [$ {( L# n/ w) X7 W inspect <expression>+ i ?1 b" u3 Z, J9 i
when <constant_list> then( w: y; w: ]& Z- X& l/ o
<statement sequence1>;# R# m! B1 ^& Q
when <constant_list> then8 ?+ s! Y: [0 w( Z% X- \( t! X
<statement sequence2>;9 d* Z1 c d+ K1 G: R9 R
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else
% e1 \8 y0 i7 H7 P3 H( B <statement sequence3>;
' x1 h; X5 V; B0 wend;
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2 t, k l5 |. h2循环语句
9 n9 ]; B1 p. C) } (1) from <statement sequence1>
2 t! {! K& E. e" x6 L: k until <condition> loop
3 p" ^7 T% O- F0 ~0 z <statement sequence2>;4 Y# y' c2 @; m8 K' R5 C0 {% p/ s
end;
- \, `) {$ ^: I, ~) c; h (2) while <condition> loop: g& f/ n; W' R+ S+ w; ?
<statement sequence1>;
: v2 i0 W& D, u6 ~! e end;
( Z0 m; d& k- ]+ B (3) repeat
; k% \4 z5 ?% `: U: Y# | <statement sequence1>;4 w( g8 P s* O
until <condition>;
4 \6 W& O. o* J4 K3 e% ` (4) for <condition> to <condition> loop7 {, L* t! p$ t( ~6 Q$ {$ Q
<statement sequence1>;
2 \ a" G" I4 O5 h/ v next;/ I$ d) p$ ` X/ b$ O
3中断语句
1 _: ^, S/ t+ u4 a1 M waituntil <condition> prio <integer expression>;: F7 v* ^. ^! _; T! ]
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以上为常用的函数！
" @ J5 i3 Q5 J( l% `! y还有很多，如有需要我把资料发到你邮箱里
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