微信小程序中 浮点型的16进制怎么相互转换
时间: 2024-05-14 18:19:29 浏览: 146
您好,关于微信小程序中浮点型的16进制相互转换,我可以为您提供以下代码:
将浮点数转为16进制字符串:
```javascript
function floatToHex(f) {
var view = new DataView(new ArrayBuffer(4));
view.setFloat32(0, f);
var hex = "";
var len = view.byteLength;
for (var i = 0; i < len; i++) {
var h = view.getUint8(i).toString(16);
if (h.length < 2) {
h = "0" + h;
}
hex += h;
}
return hex;
}
```
将16进制字符串转为浮点数:
```javascript
function hexToFloat(hex) {
var view = new DataView(new ArrayBuffer(4));
var len = view.byteLength;
for (var i = 0; i < len; i++) {
view.setUint8(i, parseInt(hex.substr(i * 2, 2), 16));
}
return view.getFloat32(0);
}
```
使用方式:
```javascript
//将浮点数转为16进制字符串
var floatNum = 3.1415926;
var hexString = floatToHex(floatNum);
console.log(hexString); // "40c90fdb"
//将16进制字符串转为浮点数
var hexString = "40c90fdb";
var floatNum = hexToFloat(hexString);
console.log(floatNum); //3.141592502593994
```
希望能够帮到您!如果还有其他问题,请继续提问。
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