function calculate(op){
if(op === "+") {
let result = 0;
for(let i = 1; i < arguments.length; i++){
result += arguments[i];
}
return result;
}
else if(op === "*") {
let result = 1;
for(let i = 1; i < arguments.length; i++){
result *= arguments[i];
}
return result;
}
}
function calculate(op, ...data){
if(op === "+") {
let result = 0;
for(let i = 1; i < data.length; i++){
result += data[i];
}
return result;
}
else if(op === "*") {
let result = 1;
for(let i = 1; i < data.length; i++){
result *= data[i];
}
return result;
}
}
rest参数,模模糊糊地懂,在哪里见过,可以用
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转载自blog.csdn.net/weixin_40945354/article/details/120649388
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