本文介绍了一个将数字转换为中文口语化表达的方法，包括万和亿单位的正确使用。提供了Python和JavaScript两种语言的实现方式，适用于处理大数据量的场景。
python
def fn(num):
"""
把数字口语化
"""
ret = ""
num = int(num)
if num/10000 == 0:
ret = str(num)
else:
if num/10**8 == 0:
if num%10000 != 0:
ret = str(num/10000) + "万" + str(num % 10000)
else:
ret = str(num/10000) + "万"
else:
n2 = num%10**8
if n2%10000 != 0 and n2/10000 != 0:
ret = str(num/10**8) + "亿" + str(n2/10000) + "万" + str(n2%10000)
elif n2%10000 != 0 and n2/10000 == 0:
ret = str(num/10**8) + "亿" + str(n2%10000)
elif n2%10000 == 0 and n2/10000 != 0:
ret = str(num/10**8) + "亿" + str(n2/10000) + "万"
elif n2%10000 == 0 and n2/10000 == 0:
ret = str(num/10**8) + "亿"
return ret
javascript:
function int2string(num) {
num = Number(num);
if (num/10000 < 1){
ret = num;
}else{
if (num/Math.pow(10,8) < 1) {
if (num%10000 != 0) {
ret = parseInt(num/10000) + "万" + num % 10000;
}else{
ret = parseInt(num/10000) + "万";
}
}else{
n2 = num%Math.pow(10,8);
if (n2%10000 != 0 & n2/10000 != 0) {
ret = parseInt(num/Math.pow(10,8)) + "亿" + parseInt(n2/10000) + "万" + (n2%10000);
}else if(n2%10000 != 0 & n2/10000 == 0){
ret = parseInt(num/Math.pow(10,8)) + "亿" + parseInt(n2%10000);
}else if(n2%10000 == 0 & n2/10000 != 0){
ret = parseInt(num/Math.pow(10,8)) + "亿" + parseInt(n2/10000) + "万";
}else if(n2%10000 == 0 & n2/10000 == 0){
ret = (num/Math.pow(10,8)) + "亿";
}
}
}
return ret
}
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