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发表于 2012-11-13 08:48:12
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1判断语句+ R2 T8 K, g, q! ]8 m, ]$ r* x2 [* x
if <condition> then3 r! T4 o+ s% s8 o
<statement sequence1>;
W& f' J; i7 F( b elseif <condition> then
% K9 }0 q$ m1 ? ^( F <statement sequence2>;0 w% \# Q0 R; c+ K
else 9 K. w! e0 j. Q% s9 }
<statement sequence3>;6 L# w, i( c2 z3 S B$ |
end;
9 |3 ~6 [4 |+ `& R9 y% H$ z如果分支比较多，用：
3 o4 Q; O( H9 W" |$ G inspect <expression>
, ^- }: s$ h U* z# W when <constant_list> then
# Q: w! y* _1 O3 w, K- ^ <statement sequence1>;
1 j5 i7 J2 L% z9 Y$ R7 T/ _ when <constant_list> then0 t. ]; V1 h+ {% `
<statement sequence2>;
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else
" N! i1 B# x' L1 f. w <statement sequence3>;
/ x9 V! ?3 d6 xend;
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5 x5 s+ m1 Y N0 e2循环语句
: s% E# u8 ^5 }( t6 D2 H3 F (1) from <statement sequence1>/ {2 p2 R& p2 G) j0 M) G0 ?
until <condition> loop
W$ p. c6 Q0 l$ C h <statement sequence2>;3 p, ~5 N/ ^2 y
end;9 j3 b+ i% ?: F& H5 m$ g5 o/ N
(2) while <condition> loop K5 z5 p$ _7 C) ~% U
<statement sequence1>;. k) \2 o' L) M# a0 N) s: b: O
end;
- z" J" ?0 V1 K: Z+ r; w) Y" e (3) repeat 9 f; E I! P! W: O
<statement sequence1>;7 r, o2 f/ i! e1 x$ @4 T
until <condition>;
+ y9 e* c' ~( h0 k5 ?5 X- U (4) for <condition> to <condition> loop
$ A; i6 V& j4 Z: z! p# x& A <statement sequence1>;
% z b& l7 ] a" Y1 [9 O next;
! R |& c0 o5 j4 |* P. K8 Q5 S3中断语句& w" p( O) o4 {5 S$ s0 @
waituntil <condition> prio <integer expression>;$ [0 X7 o6 a& I G$ R8 N6 B
8 |( N g5 M- D o, a% e6 e
; @% E8 W; |4 l6 M9 _以上为常用的函数！
; b' I% v% [) T/ J# K还有很多，如有需要我把资料发到你邮箱里 - d% x3 a) N, w/ e0 a u0 }2 i
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