Cocoa库中移除字符串前后空白的方法NSString *str [string stringByTrimmingCharactersInSet:[NSCharact
Cocoa库中移除字符串前后空白的方法
NSString *str = [string stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
Cocoa库中移除字符串前后空白的方法
NSString *str = [string stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];