设置case语句中数字的格式

switch (num) {
  case 1:
    console.log(num.toFixed(2));
    break;
  case 2:
    console.log(num.toFixed(2));
    break;
  // 其他case语句...
}

num = 1
case = {
    1: "{:.2f}".format(num),
    2: "{:.2f}".format(num),
    # 其他case语句...
}
print(case[num])

import java.text.DecimalFormat;

int num = 1;
DecimalFormat decimalFormat = new DecimalFormat("#.00");
switch (num) {
    case 1:
        System.out.println(decimalFormat.format(num));
        break;
    case 2:
        System.out.println(decimalFormat.format(num));
        break;
    // 其他case语句...
}