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							- // 求和
 
- const add = function(num1, num2) {
 
- 	const num1Digits = (num1.toString().split('.')[1] || '').length;
 
- 	const num2Digits = (num2.toString().split('.')[1] || '').length;
 
- 	const baseNum = Math.pow(10, Math.max(num1Digits, num2Digits));
 
- 	return (num1 * baseNum + num2 * baseNum) / baseNum;
 
- }
 
- // 乘
 
- const ride = function(num1, num2) {
 
- 	const num1Digits = (num1.toString().split('.')[1] || '').length;
 
- 	const num2Digits = (num2.toString().split('.')[1] || '').length;
 
- 	const baseNum = Math.pow(10, Math.max(num1Digits, num2Digits));
 
- 	return ((num1 * baseNum) / baseNum) * ((num2 * baseNum) / baseNum);
 
- }
 
- export {
 
- 	add,
 
- 	ride
 
- }
 
 
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