function positiveSum(arr) {
var result = 0
for (var i = 0; i < arr.length; i++) {
if(arr[i]>=1){
result += arr[i];
}
}
return result
}
//测试
console.log(positiveSum([1,2,3,-1]))
//测试结果
function positiveSum(arr) {
var result = 0
for (var i = 0; i < arr.length; i++) {
if(arr[i]>=1){
result += arr[i];
}
}
return result
}
//测试
console.log(positiveSum([1,2,3,-1]))
//测试结果