Validate if a given string is numeric.Some
examples:"0"=>true" 0.1 "=>true"abc"=>false"1
a"=>false"2e10"=>trueNote:It is intended for the problem stat...
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其他好文 时间：
2014-04-29 16:45:45
阅读次数：
398
Cover with polyethylene plastic film intended
for system United States Postal Service . These plastic envelopes are resistant
to puncture and tear, wa...
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数据库 时间：
2014-04-29 10:11:47
阅读次数：
568
