//去除首尾空格
NSString *place = [self.placeTextView.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
//去除首尾空格和换行NSString *place = [self.placeTextView.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
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