如何使用字符串和整数组合列表中的元素

# 使用加号进行字符串拼接
name = "file"
number = 123
combined = name + str(number) + ".txt"
print(combined)  # 输出: file123.txt

# 使用格式化字符串
combined_format = f"{name}{number}.txt"
print(combined_format)  # 输出: file123.txt

// 使用加号进行字符串拼接
let name = "file";
let number = 123;
let combined = name + number + ".txt";
console.log(combined);  // 输出: file123.txt

// 使用模板字符串
let combinedTemplate = `${name}${number}.txt`;
console.log(combinedTemplate);  // 输出: file123.txt

// 使用加号进行字符串拼接
String name = "file";
int number = 123;
String combined = name + number + ".txt";
System.out.println(combined);  // 输出: file123.txt

// 使用String.format
String combinedFormat = String.format("%s%d.txt", name, number);
System.out.println(combinedFormat);  // 输出: file123.txt