您应该使用
DepreRuneInString而不只是
slice字符串到字节。
操场上的解决方案：https :
//play.golang.org/p/qi_6S1J_dZU
package mainimport ( "fmt" "unipre/utf8")func main() { fmt.Println("Hello, playground") k:="1234fd23434" input:="The 我characterode我 113 is equal to q" fmt.Println(EncryptDecrypt(input,k)) // expect: "eZV扷ZRFRWEWA[戣[@GRX@^B"}func EncryptDecrypt(input, key string) (output string) { keylen := len(key) count := len(input) i := 0 j := 0 for i < count { c, n := utf8.DepreRuneInString(input[i:]) i += n k, m := utf8.DepreRuneInString(key[j:]) j += m if j >= keylen { j = 0 } output += string(c ^ k) } return output}与您的js结果相比
function xorStrings(key,input){ var output=''; for(var i=0;i<input.length;i++){ var c = input.charCodeAt(i); var k = key.charCodeAt(i%key.length); output += String.fromCharCode(c ^ k); } return output;}console.log(xorStrings('1234fd23434',"The 我characterode我 113 is equal to q"))// expect: "eZV扷ZRFRWEWA[戣[@GRX@^B"测试结果是相同的。
这就是为什么。
在旅途中，当您设置字符串范围时，将迭代字节，但是javascript
charCodeAt是针对字符而不是字节。在utf-8中，字符长度可能为2或3个字节。这就是为什么您得到不同的输出的原因。
在操场上测试https://play.golang.org/p/XawI9aR_HDh
package mainimport ( "fmt" "unipre/utf8")var sentence = "The 我quick brown fox jumps over the lazy dog."var index = 4func main() { fmt.Println("slice of string...") fmt.Printf("The byte at %d is |%s|, |%s| is 3 bytes long.n",index,sentence[index:index+1],sentence[index:index+3]) fmt.Println("runes of string...") ru, _ := utf8.DepreRuneInString(sentence[index:]) i := int(ru) fmt.Printf("The character pre at %d is|%s|%d| n",index, string(ru), i)}输出是
slice of string...The byte at 4 is |�|, |我| is 3 bytes long.runes of string...The character pre at 4 is|我|25105|
