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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
1 b7 l* H! C0 U6 h* K% c if <condition> then: m! e: Y. p* Q: l# [# _; Z, u
<statement sequence1>;
6 j/ X# {7 K) z6 C elseif <condition> then0 @: w) }5 ^ R" G% C, r/ p
<statement sequence2>;
4 f7 N5 w% v! Y% o) x# ~5 n B. i" Z K else
/ k7 P6 \+ {: F1 a <statement sequence3>;
0 A, F0 O: S& G+ }5 Y end;
& H& o3 Z( \; }, H5 @如果分支比较多，用：
% j( \9 ~& I) v4 G( Q) \ inspect <expression>& ]* F* y: ?0 Z* k, g( B, \
when <constant_list> then* }% P7 l' K+ W k
<statement sequence1>;
2 a# m7 p( o$ \# @( h$ n! O2 E" l7 f# C when <constant_list> then
/ _$ ]( K0 j+ l4 r <statement sequence2>;
" y6 k: P' H5 ~' B/ P( C+ b; U. | .../ g* D, v! W8 |3 q, c0 F- r& O. V& O/ r
else
C9 r" T* n% M' k, Q <statement sequence3>;, `! O0 r/ ^* x. o3 X/ r
end;9 C! P" Z# @+ h) n7 s7 \/ y8 y. j, @/ ^
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2循环语句
3 O* Z$ u( q# u" |. C (1) from <statement sequence1>4 {2 i K H' o* c, m4 U# X! n% I
until <condition> loop
* y0 F; ] q- s <statement sequence2>;
1 O; E. v& n F& c9 r7 b end;
( E. C% G5 e0 c7 E: ]9 B' y (2) while <condition> loop. q+ @8 c& Z# [* [/ X/ [ a
<statement sequence1>;
# b/ B- `6 J& w, H end;3 t8 S& y5 j) u: j9 e1 @0 C
(3) repeat 5 e; i% O3 g, @* e* l `
<statement sequence1>;8 f ~9 x0 U6 A# T7 l( D2 _
until <condition>;! [, q! s+ ~, s; E8 s2 w
(4) for <condition> to <condition> loop
9 a; i$ U+ V# V; N: v <statement sequence1>;
& t) _ k9 P( ] next;
4 W% `& A- S- N8 g; E( w3中断语句9 A9 F( M! E# p) l
waituntil <condition> prio <integer expression>;8 U5 @8 k4 V5 s+ j5 O1 U
2 K \! a. d) \5 x
7 k& S) s7 H( U7 S0 K) U以上为常用的函数！! R! }5 _9 O" S {; F3 X
还有很多，如有需要我把资料发到你邮箱里 $ Y) h) d6 h( Y6 _( ~
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