func toInt() -> Int? 它将代表整数的字符串转换为其Int值。我正在寻找类似的东西,使用十六进制字符串。我知道这很容易实现,但是如果Swift已经有了,那就更好了。否则,如果您已经对String和Int进行了扩展以实现以下目的: let anHex = "0xA0" if let anInt = anHex.toInt() { ...
//十六进制String转整数var res:UInt32=0NSScanner.localizedScannerWithString(str).scanHexInt(&res) 当然,这个用起来就要麻烦许多,类似的一堆API: NSScanner.localizedScannerWithString(str).scanInt(&res)NSScanner.localizedScannerWithString(str).scanFloat(&res)NSScanner.localizedScannerWithString(str).scanD...
let intArray = ["0","1","2","3","4","5","6","7","8","9","a","b","c","d","e","f"]; let _hex = NSString(string: _hexString) let left = String(format: "%c", _hex.character(at: 0)) let right = String(format: "%c", _hex.character(at: 1)) var leftVa...
///把字符串转成整型Int,若不能转成Int则返回0 nsstr.integerValue//54321 1. 2. 1.3 String与NSString的API不同,用法相同 · 初始化一个String变量str,一个NSString变量nsstr: var str = String() var nsstr = NSString() str = "54321-bca" nsstr = "54321-ns" 1. 2. 3. 4. · 获取字符...
先前解Hex string to Binary string曾用bitmap舉例,由於是16進位字串,每個16進位字串代表4個Elementon/off,這裡的Hex string Bitmap只有16Byte,代表1-64欄位 on/off,65-128放在Primary區域的第一個欄位P-1,也是16Byte。 Primary bitmap:8220000000000000,表示DE1(也稱P-1)、DE7(P-7)及DE11(P-11)有值。
convenience init(hex:Int, alpha: CGFloat = 1.0) { self.init( red: CGFloat((hex & 0xFF0000) >> 16) / 255.0, green: CGFloat((hex & 0x00FF00) >> 8) / 255.0, blue: CGFloat((hex & 0x0000FF) >> 0) / 255.0, alpha: alpha ) } } 恭喜,现在你可通过十六进制代码生成不同颜色,...
return Int(result) } func hash(string: String) -> [UInt8] { var hash = [UInt8](repeating: 0, count: self.digestLength()) switch self { case .MD5: CC_MD5( string.bytes, CC_LONG(string.bytes.count), &hash) case .SHA1: CC_SHA1( string.bytes, CC_LONG(string.bytes.count), &...
init(red: CGFloat(red) / 255.0, green: CGFloat(green) / 255.0, blue: CGFloat(blue) / 255.0, alpha: 1.0) } convenience init(rgb: Int) { self.init( red: (rgb >> 16) & 0xFF, green: (rgb >> 8) & 0xFF, blue: rgb & 0xFF ) } } 在代码中的使用如下 代码语言:javascript ...
This constructor returns anOptional, since if the string is not valid hexadecimal, the constructor will fail andnilwill be returned. If no integer type is specified, the type will default toInt. Hex("FF")// Radix<Int>(255)?"FF".hex// Radix<Int>(255)?"0xFF".hex// Radix<Int>(255...
SwiftHEXColors - HEX color handling as an extension for UIColor. UIColor-Hex-Swift - Hex to UIColor converter. UIGradient - A simple and powerful library for using gradient layer, image, color. Command Line Create command line applications. back to top Ashen - A framework for writing termin...