将特殊字符中的反斜杠替换为双反斜杠

original_string = "C:\Users\Username\Documents"
# 错误的方式，会导致转义
print(original_string)

# 正确的方式，使用原始字符串或双反斜杠
correct_string = r"C:\Users\Username\Documents"
print(correct_string)

# 如果已经是字符串，可以使用replace方法
corrected_string = original_string.replace("\\", "\\\\")
print(corrected_string)

let originalString = "C:\\Users\\Username\\Documents";
console.log(originalString);

// 如果需要替换
let correctedString = originalString.replace(/\\/g, "\\\\");
console.log(correctedString);

String originalString = "C:\\Users\\Username\\Documents";
System.out.println(originalString);

// 如果需要替换
String correctedString = originalString.replace("\\", "\\\\");
System.out.println(correctedString);