→ MOONRAKER: 貼個完整檔案來瞧瞧 10/21 23:15
推 tsao1211: 貼一下 o_total 問題可能在那 10/22 09:38
推 jhunkyoiori: document.getElementById("o_total").value 10/22 10:49
→ jhunkyoiori: 這邊沒有初始值 所以抓不到東西 就出錯了給他個0吧 10/22 10:50
→ jhunkyoiori: 或是加判斷空值就給0 10/22 10:51
→ cathy19: 各位謝謝,我晚點貼上來? 10/22 11:00
→ cathy19: function sum() { 10/22 11:44
→ cathy19: var o_total = 0; 10/22 11:44
→ cathy19: var o_dollar1 = parseInt(document.getElementById('o_d 10/22 11:45
→ cathy19: ollar1').value); 10/22 11:45
→ cathy19: var o_dollar2 = parseInt(document.getElementById('o_ 10/22 11:46
→ cathy19: dollar2').value); 10/22 11:46
→ cathy19: document.getElementById('o_total').value = o_dollar1+ 10/22 11:46
→ cathy19: o_dollar2 ; 10/22 11:46
→ cathy19: 請問j大我的初始值哪裡用錯了,淚~~ 10/22 11:47
→ cathy19: 謝謝上面大大幫忙,已解決了!! 10/22 13:37