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发表于 2012-11-13 08:48:12
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1判断语句8 S! j8 a! _% L2 D" x c: H
if <condition> then. D, u3 X+ @8 D, h
<statement sequence1>;: \# d* b$ p+ ^8 V4 p5 e3 {1 N+ i
elseif <condition> then" e" K& q. W1 D7 E
<statement sequence2>;% {9 Y# t7 O9 S# K/ u% d" ~/ s
else
5 a1 o* W0 o9 c1 a! Y/ I5 w6 j d) g Y <statement sequence3>;7 ^, Z3 R0 p" ?
end;" I4 A# |' d' o% ^1 A
如果分支比较多，用：
6 M% N/ }* @& @( H' g4 X inspect <expression>
1 C. Q# R7 p3 g/ Z* r when <constant_list> then* }' c$ y' q0 G. x/ N( X
<statement sequence1>;8 ^9 F% H: B9 J) q# q. i
when <constant_list> then3 D4 r: O6 Q' u0 i: A! }6 g/ Q
<statement sequence2>;; l6 z9 i" H; b' a
...8 h( T! k; F/ t3 D( `
else
% X! X* `2 l& j9 _; J3 S <statement sequence3>;
+ w/ I/ z+ x# X& \end;' |9 M% u5 @$ k
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2循环语句
! q/ S' t, r5 i. j6 v; g* ` (1) from <statement sequence1>8 |8 X( I4 a5 D# ~; B1 F
until <condition> loop# b7 p5 `6 Z5 A
<statement sequence2>;! ~/ r% X4 D6 l0 i( T( X' t
end;
' c& C% A' N4 F8 q9 X# W (2) while <condition> loop
% D& V; K0 N ~6 Q E <statement sequence1>;
* u% P/ z' H; V- e d end;- X5 e+ [" h9 W4 B4 x1 Z
(3) repeat
) K5 n: Y0 g* N/ d. K* u <statement sequence1>;
; z, s5 L6 \, J7 z5 M9 c until <condition>;. Q1 T5 m; G8 k6 A9 K
(4) for <condition> to <condition> loop
9 h* y( F) R( P5 i' T% t' l <statement sequence1>;$ e7 d1 A9 e& ~/ {; H4 W4 S7 r; i
next;
5 y/ N' l6 }3 r# z1 a" B3中断语句; w J" E! v4 k# ?
waituntil <condition> prio <integer expression>;
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以上为常用的函数！! Q% n1 B* x6 j3 A7 C' Q1 P/ f
还有很多，如有需要我把资料发到你邮箱里
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