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当我们用<%@page contentType="application/vnd.ms-excel; charset=UTF-8"%>的方法导出jsp文件为excel时，如果导出的数据中有数字以0开头，则该0会被省略，为了保留这个处于首位的0，可以在表格的style中加入：
style='mso-number-format:"\@";'?
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这样的话，导出的该表格中首位为0的数字就会将该0保留啦！
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经同事测试,不是JSP的也可以解决此问题.要在<TD></TD>里加入此句:
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<TD style='mso-number-format:"\@";'></TD>
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附: execl的所有格式
mso-number-format:"0" NO Decimals
mso-number-format:"0\.000" 3 Decimals
mso-number-format:"\#\,\#\#0\.000" Comma with 3 dec
mso-number-format:"mm\/dd\/yy" Date7
mso-number-format:"mmmm\ d\,\ yyyy" Date9
mso-number-format:"m\/d\/yy\ h\:mm\ AM\/PM" D -T AMPM
mso-number-format:"Short Date" 01/03/1998
mso-number-format:"Medium Date" 01-mar-98
mso-number-format:"d\-mmm\-yyyy" 01-mar-1998
mso-number-format:"Short Time" 5:16
mso-number-format:"Medium Time" 5:16 am
mso-number-format:"Long Time" 5:16:21:00
mso-number-format:"Percent" Percent - two decimals
mso-number-format:"0%" Percent - no decimals
mso-number-format:"0\.E+00" Scientific Notation
mso-number-format:"\@" Text
mso-number-format:"\#\ ???\/???" Fractions - up to 3 digits (312/943)
mso-number-format:"\0022￡\0022\#\,\#\#0\.00" ￡12.76
mso-number-format:"\#\,\#\#0\.00_ \;\[Red\]\-\#\,\#\#0\.00\ " 2 decimals, negative numbers in red and signed (1.56?? -1.56)
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