## **js中把7.25转换成一个整数** ``` var a = 7.25; parseInt(a); console.log(a); ``` * string-->number parseInt(); parseFloat(); Tip：第一位必须为数字 ``` var a = Math.floor(7.25); console.log(a) ``` ``` var a = Math.round(7.25); console.log(a) ``` [数据类型之间的转换](https://ihavenolimitations.xyz/juan1996/javascript/752303)