TA貢獻(xiàn)1條經(jīng)驗(yàn) 獲得超3個(gè)贊
<html>
????<body>
????????<input?type?=?"button"?value="點(diǎn)我"?onclick="vail()">
????</body>
</html>
<script>
??????var?scoreAll=0;
????function?vail(){
????????var?num?=?prompt("請(qǐng)輸入考試科目的數(shù)量：");
????????if(num>0){
????????????var?score?=?prompt("請(qǐng)輸入分?jǐn)?shù)：");
?????????????var?result?=?score.split(",");
????????????if(score?&&?result.length?==?num){
???????????????var?scoreArr?=?new?Array();
???????????????for(var?i=0;i<result.length;i++){
???????????????????scoreArr[i]?=?result[i];
???????????????????if(scoreArr[i]>0){
???????????????????????scoreAll=scoreAll+parseInt(scoreArr[i]);
???????????????????}else{
???????????????????????alert("成績(jī)必須是非零整數(shù)");
???????????????????}
???????????????}?
???????????????document.write("科目數(shù)："+num+"<br>");
???????????????document.write("總分是："+scoreAll);
????????????}else{
????????????????alert("請(qǐng)輸入正確的分?jǐn)?shù)!");
????????????????return?null;
????????????}
????????}else{
????????????alert("請(qǐng)輸入非零正數(shù)!");
????????????return?null;
????????}
????}
</script>
舉報(bào)