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发表于 2012-11-13 08:48:12
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1判断语句
6 o: d, r' j/ q6 @/ U: E if <condition> then) ]1 U. j" z: D2 \+ {
<statement sequence1>;
! H5 n+ {" K- d! U elseif <condition> then
7 t1 t% U/ L, f/ P# W2 z4 P) Q <statement sequence2>;5 h5 \5 y7 ^( }, q
else 7 J; j$ a8 r( u7 G' K
<statement sequence3>;
% r: S+ i. F: M5 W$ F end;
) i) [8 k+ K4 t如果分支比较多，用：1 {# h* ?9 X" @6 i9 A: f
inspect <expression>
5 I6 Y( J" y4 N3 o+ H% r$ |! c when <constant_list> then
) P) S; g i( ? <statement sequence1>;
' o5 ^1 {4 w6 D0 l; v' Z when <constant_list> then! B0 _/ _5 r/ H: g9 C- p9 u1 _' ~
<statement sequence2>;' _3 }+ C" T& u% C% q
...9 d0 J1 A; s# I2 }0 S9 {
else! P* F8 l2 n1 f) f
<statement sequence3>;
7 a. W- @. A L# e7 s5 cend; J( t/ D; r/ O3 E! L& F/ _; m$ ^, o
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2循环语句9 m# @; T8 K% r% `- Z
(1) from <statement sequence1>
% i) w' E- r" ?& A" @1 x until <condition> loop9 @; p3 u# c" g @3 m, T" C% w
<statement sequence2>;
" P, Y8 Z. I2 l5 m# g9 q end;
& y8 G X( h% L. k1 w: l (2) while <condition> loop
. Z4 b* z5 l ]( d% v" V; g9 ^ <statement sequence1>;
: A; [4 }. e Q* t. i3 @$ X, V g end;: i: @- n0 L3 ~1 V I
(3) repeat
; N9 Q6 c* S6 U2 v1 G+ k <statement sequence1>;
6 X3 f8 b a4 ~% y, J7 [9 Y until <condition>;
/ N8 r3 y8 o; a (4) for <condition> to <condition> loop
2 k$ ~4 W# R) M <statement sequence1>;
6 l4 n- ^* b+ j; L5 X0 t3 e; |3 q' \ next;
# ~1 P2 N) V, \; R5 Z/ a6 a3中断语句4 r( n9 t. {+ ~0 {1 n' O/ J
waituntil <condition> prio <integer expression>;
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. z: i X+ y. k以上为常用的函数！
+ e- z. V! W& J; [还有很多，如有需要我把资料发到你邮箱里
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