一,代码. - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. //直接传是没反应的,去掉其中的空格 NSString *url=[[NSString stringWithFormat:@"http://baidu.com"] stringByAddingPercentEscapesUsingEncoding…
写出将字符串中的数字转换为整型的方法,如:"as31d2v"->312,并写出相应的单元测试,输入超过int范围时提示不合法输入. public struct ConvertResult { public ConvertState State; public int Number; } public enum ConvertState { // 输入不合法 InValid = , // 输入合法 Valid = } public class StringHelper { publ…