值为0的整数以显示2位或小数位数-颤动

var num = 0;
var formattedNum = (num + 0.01).toFixed(2);
console.log(formattedNum);  // 输出：0.01

num = 0
if num == 0:
    formattedNum = "{:.2f}".format(0.01)
else:
    formattedNum = "{:.2f}".format(num)
print(formattedNum)  # 输出：0.01

int num = 0;
String formattedNum;
if (num == 0) {
    formattedNum = "0.01";
} else {
    formattedNum = String.valueOf(num);
}
System.out.println(formattedNum);  // 输出：0.01