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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
; {/ {! a, }. J' p. J7 o# K if <condition> then! N0 K( F$ ^1 `% g
<statement sequence1>;6 E* I& ^9 M# P) z/ x
elseif <condition> then" Z' }+ ^8 b6 X: S$ c
<statement sequence2>;$ H. v0 M# n& G8 A
else
1 y' ~. `! T3 W. |; r <statement sequence3>;, X0 d4 H/ o% t- y9 }! V
end;
% m6 W8 N9 X+ R' A, Y( t4 s如果分支比较多,用:/ l4 V: V- c$ x2 C, v v" d
inspect <expression>$ H; |: r# y9 F" \7 h6 E# m
when <constant_list> then
5 o/ g* h/ j5 p0 @ <statement sequence1>;
4 i3 o; Q$ |* {# D; h' Q& ]$ F when <constant_list> then$ K4 S; m) j8 \( J5 i- C
<statement sequence2>;8 B9 U( n- \* ~# X
...
$ g) H) N3 x/ B else
3 G1 h( P" z3 ]- B5 J$ ` <statement sequence3>;
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- n3 \; c6 S5 h5 a2循环语句
6 p5 _+ }0 \* G* E; l (1) from <statement sequence1>0 E: J1 J& z; B M" U- p, q
until <condition> loop2 h6 e8 c+ N, t% b, a; D( S
<statement sequence2>;
$ ~9 P. P, F4 i" D- G+ |8 ~4 j$ T end; N9 w+ w3 m$ T( ?8 v
(2) while <condition> loop
9 ~4 ?$ H; ?2 B( I- M& x. I$ C <statement sequence1>;
$ g5 c/ N0 x0 G1 ` end;
! v8 S; ?5 F" l$ z4 I (3) repeat
: _( T5 @1 ?8 s9 W) s <statement sequence1>;
! y3 M3 j. V X- _% m4 p until <condition>;& O5 W9 Y+ _5 U) U: `
(4) for <condition> to <condition> loop6 m2 E) g H7 q9 z# e
<statement sequence1>;& s' ~" S0 {% B
next;" e5 G/ C8 l% J& P. h1 q
3中断语句8 b& E Y+ j9 H1 V! p
waituntil <condition> prio <integer expression>;
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0 R. e. C$ i( Y2 E: Y
以上为常用的函数!
+ U4 f7 v2 J& a" j ?还有很多,如有需要我把资料发到你邮箱里
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