swift中，想要把：
“wang ba”
分割为：
字符串数组
“wang”, “ba”
搜：
swift split string to array
参考：
最后自己实现了：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | //split string into string array, normally seperator is white space//if origin string not containing white space, then pass the empty string here, will split to every single char as stringfunc splitSingleStrToStrArr(strToSplit:String, seperatorStr:String) -> [String] { print("strToSplit=\(strToSplit), seperatorStr=\(seperatorStr)") var splitedStrArr:[String] = [String]() if !seperatorStr.isEmpty { let seperatorChar:Character = splitSingleStrToCharArr(seperatorStr)[0] splitedStrArr = strToSplit.characters.split(seperatorChar).map(String.init) } else { //split string(without space) into every single char as string let splitedCharArr:[Character] = splitSingleStrToCharArr(strToSplit) for eachChar in splitedCharArr { splitedStrArr.append(String(eachChar)) } } print("splitedStrArr=\(splitedStrArr)") return splitedStrArr} |
调用效果：
1 2 3 4 5 6 7 8 9 10 11 12 | /** splitSingleStrToStrArr demo*/let noneSeperatorStr:String = ""let strWithoutSpace:String = "中间没有空格单个字符串"let splitedStrArr_withoutSpace:[String] = splitSingleStrToStrArr(strWithoutSpace, seperatorStr: noneSeperatorStr)print("splitedStrArr_withoutSpace=\(splitedStrArr_withoutSpace)") //["中", "间", "没", "有", "空", "格", "单", "个", "字", "符", "串"]let spaceSeperatorStr:String = " "let stringContainingSpace:String = "中 间 有 空 格 的 字 符 串 "let splitedStrArr_containingSpace:[String] = splitSingleStrToStrArr(stringContainingSpace, seperatorStr: spaceSeperatorStr)print("splitedStrArr_containingSpace=\(splitedStrArr_containingSpace)") //["中", "间", "有", "空", "格", "的", "字", "符", "串"] |
最后演化为：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | extension String { //split string into string array, normally seperator is white space //if origin string not containing white space, then pass the empty string here, will split to every single char as string func splitToStrArr(seperatorStr:String = "") -> [String] { guard self.notEmpty else { return [String]() } //print("strToSplit=\(strToSplit), seperatorStr=\(seperatorStr)") var splitedStrArr:[String] = [String]() if seperatorStr.notEmpty { let seperatorChar:Character = seperatorStr.splitToCharArr()[0] splitedStrArr = self.characters.split(seperatorChar).map(String.init) } else { //split string(without space) into every single char as string let splitedCharArr:[Character] = self.splitToCharArr() for eachChar in splitedCharArr { splitedStrArr.append(String(eachChar)) } } //print("splitedStrArr=\(splitedStrArr)") return splitedStrArr } } |
示例代码：
1 2 3 4 5 6 7 8 9 10 11 12 13 | /** splitToStrArr demo*///let noneSeperatorStr:String = ""let strWithoutSpace:String = "中间没有空格单个字符串"//let splitedStrArr_withoutSpace:[String] = strWithoutSpace.splitToStrArr(noneSeperatorStr)let splitedStrArr_withoutSpace:[String] = strWithoutSpace.splitToStrArr()print("splitedStrArr_withoutSpace=\(splitedStrArr_withoutSpace)") //["中", "间", "没", "有", "空", "格", "单", "个", "字", "符", "串"]let spaceSeperatorStr:String = " "let stringContainingSpace:String = "中 间 有 空 格 的 字 符 串 "let splitedStrArr_containingSpace:[String] = stringContainingSpace.splitToStrArr(spaceSeperatorStr)print("splitedStrArr_containingSpace=\(splitedStrArr_containingSpace)") //["中", "间", "有", "空", "格", "的", "字", "符", "串"] |
注：这类函数已整理至我的库：
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