提交成功但是計(jì)算的時(shí)候點(diǎn)擊等號(hào)不會(huì)出結(jié)果
求大神看看是怎么回事
張小生
2015-03-25
2 回答
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2015-03-25
1)?var select=document.getElementById("select").value;. 后面多一個(gè)點(diǎn)符號(hào)
2）switch 不是這樣寫(xiě)的
3）下問(wèn)題頁(yè)的下面我回答過(guò)這題無(wú)數(shù)次了。你個(gè)以看看我之前給的答案
希望對(duì)你有幫助
2015-03-26
?var x,y,z,f;
??? x= document.getElementById("txt1").value ;
??? y=document.getElementById("txt2").value;
??? z=document.getElementById("select").value;
??? f=document.getElementById("fruit").value;
??? if(z=="+"){
??????? document.getElementById("fruit").value=(x-0)+(y-0);
??????? f= document.getElementById("fruit").value;
?? }else if(z=="-")
??????? {
?????????? document.getElementById("fruit").value=x-y;
?????????? f=document.getElementById("fruit").value=x-y;
??????? }
??????? else if(z=="*"){
???????????? document.getElementById("fruit").value=x*y;
???????????? f= document.getElementById("fruit").value=x*y;
??????? }else{
???????????? document.getElementById("fruit").value=x/y;
???????????? f= document.getElementById("fruit").value=x/y;
??????? }
???????