// 步骤1: 定义字符串模板lettemplate="Hello, %@! You are %d years old."// 步骤2: 创建需要插入的参数letname="Alice"// 字符串类型letage=30// 整数类型// 步骤3: 使用 String(format:) 方法格式化字符串letformattedString=String(format:template,name,age)// 步骤4: 输出结果print(formattedString...
String str = String.format("%1$7s", raw); // 简化 //String str = String.format("%7s", raw); 1. 2. 3. 4. 示例——将"hello"格式化为"hello " String raw = "hello"; String str = String.format("%1$-7s", raw); // 简化 //String str = String.format("%-7s", raw); 1....
1> 建议用NSString作为中转,因为Swift取子串的方法一直在优化 代码语言:javascript 代码运行次数:0 运行 AI代码解释 let str = "王红庆大帅逼" let ocStr = str as NSString let string = ocStr.substring(with: NSMakeRange(2, 4)) print(string) // 输出:庆大帅逼(从第2个'庆'字往后取4位) 2> sw...
let str1= String(format:"价格%f",5.68) print(str, str1)//结果:第1课程 价格5.680000let str2 = String(format:"价格%.2f",5.68) print(str2)//结果:价格5.68 5. Swift 获取字符串长度 let str = String(format:"价格%.2f",5.68)//获取长度print(str.count)//结果:6 6. Swift 判断字符串是否...
let timeStr= String(format:"%02d:%02d:%02d", h, m, s) String 与 Range 的结合 要Swift 中, String 和 Range 连用时,语法结构比较复杂 如果不习惯 Swift 的语法,可以将字符串转换成 NSString 再处理 let helloString ="我们一起飞"(helloStringasNSString).substringWithRange(NSMakeRange(2,3)) ...
Void removeAtIndex(i:String.Index) //删除字符 Void removeRange(subRange:Range<String.Index>)//删除一个区间 Void replaceRange(subRange:Range<String.Index>,with:C) 9 格式化合并字符串 String stringByAppendingFormat(format:String,arguments:CVarArgType...) ...
vartext:String;// 直接赋值text=""//构造方法text=String()text=String("apple")text=String(888)text=String(8.88)text=String("a")text=String(true)text=String(describing:(1,2,true))text=String(describing:[1,2,3,4])text=String(format:"$%.2lf",123.145) ...
swift package plugin --allow-writing-to-package-directory swiftformat You can limit the formatting to a particular target with --target option. You can also specify SwiftFormat arguments, e.g. --swiftversion. Example swift package plugin --allow-writing-to-package-directory swiftformat --target...
Fix type mismatch error inreflowMultilineStringLiterals(#979) Apr 8, 2025 build-script-helper.py Enable the license header check Mar 7, 2025 README Code of conduct Apache-2.0 license Security swift-format swift-formatprovides the formatting technology forSourceKit-LSPand the building blocks for do...
- (void)updateString:(NSString **)string; - (void)updateObject:(id*)obj;@end // SwiftfuncinteractWith(foo:Foo) -> (String,Any) {varstring ="string"asNSString// explicit conversionfoo.updateString(&string)// parameter imports as UnsafeMutablePointer<NSString>letfinishedString = stringasStr...