function add_(num1: Number, num2: Number) {
return num1 + num2
}
console.log(add_(5, 7))
- Number 是一个 Interface, number 才是表示类型,换成小写就可以了
function add_(num1: number, num2: number) {
return num1 + num2
}
console.log(add_(5, 7))
标签:typescript,num1,num2,Number,number,运算符,add
From: https://www.cnblogs.com/isAyi/p/17721480.html