看不懂!!
for (var i = 0; i < sourceArr.length; i ++) {
sum += parseInt(sourceArr[i].substr(sourceArr[i].indexOf(":")+1));
//document.write("<br>" + sum);//test
}什么意思？看不懂
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for (var i = 0; i < sourceArr.length; i ++) {
sum += parseInt(sourceArr[i].substr(sourceArr[i].indexOf(":")+1));
//document.write("<br>" + sum);//test
}什么意思？看不懂
2018-12-20
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