如何在多列数据中找出近似值。

sangshen168

如题，如何在多列数据中比较找出多个数值的近似值。如附加中的数据：第一列9V中有842个数值 第三列36V中630个数值第五列37V中有770个数值.....,如何使与第一列中的数值近似的数值在第三和第五列中显示出来；近似的条件是：相差正负0.0005。

9V		36V		37V
203.0517	0.024931	203.0516	0.031038	203.0516	0.017752
203.0526	0.04188	203.0525	0.060673	203.0525	0.041127
219.0265	0.010933	229.2162	0.014689	235.1794	0.518051
229.2162	0.02093	231.2106	0.01662	235.1804	0.696413
233.1511	0.017142	235.1794	0.640417	236.1827	0.086297
235.1795	0.586795	235.1804	0.8524	236.1838	0.101171
235.1805	0.76022	236.1828	0.101171	237.2212	0.01829
236.1829	0.10108	236.1838	0.131295	254.8236	0.036981
236.1838	0.12056	237.2202	0.022589	255.2306	0.026914
237.2203	0.019292	237.2213	0.020826	255.2317	0.035872
237.2213	0.029041	254.8236	0.020663	256.8196	0.027193
254.8227	0.025032	255.2307	0.035008	256.8207	0.038225
254.8237	0.037278	255.2318	0.042176	257.1613	0.049171
255.2308	0.032494	256.8195	0.014525	257.1624	0.042131
255.2318	0.043444	256.8206	0.018232	257.2463	0.084495
256.8196	0.026907	257.1613	0.032358	257.2474	0.114481
256.8207	0.050402	257.1624	0.037952	258.2506	0.022785
257.1614	0.025113	257.2462	0.070563	258.8176	0.025325
257.1624	0.038625	257.2473	0.148661	260.8741	0.019523
257.2464	0.08265	258.2508	0.019319	261.011	0.028237
257.2474	0.135006	258.8177	0.012761	263.2367	0.021504
258.2498	0.017771	261.01	0.032411	265.2525	0.032026
258.2509	0.024207	261.0111	0.041511	267.1565	0.019872