/**
* 除法函数(精度丢失问题)
* @param { number } num1
* @param { number } num2
*/
export function division(num1,num2){
let t1,t2,r1,r2;
try {
t1 = num1.toString().split('.')[1].length;
} catch(e){
t1 = 0;
}
try {
t2=num2.toString().split(".")[1].length;
} catch(e){
t2=0;
}
r1 = Number(num1.toString().replace(".",""));
r2 = Number(num2.toString().replace(".",""));
return (r1/r2)*Math.pow(10,t2-t1);
}