NSStringInheritsfrom:NSObjectConformsto:NSObject,NSMutableCopying,NSSecureCoding,NSCopyingstringByTrimmingCharactersInSet: Returnsanewstringmadebyremovingfrombothendsofthereceivercharacterscontainedinagivencharacterset.-(NSString*)stringByTrimmingCharacters..
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其他好文 时间：
2014-07-13 14:20:11
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