新手求ajax返回值的问题
ajax返回值进入showmsg函数,然后alert(tips)出函数返回的值,但是总显示undefined,是不是返回类型的问题,新手求教~
function showmsg(ms)
{
var tips
switch(ms)
{
case 'ding':
tips='thanx votting';
break
case 'cai':
tips='thanx u done';
break
case 'erro':
tips='404 notfound';
break;
default: tips='erro';
break;
}return tips;
}
回复讨论(解决方案)
语法错误了吧,前面两个break 缺少结尾分号,先补齐了。之后在firebug控制台下看报什么错了。
在函数入口处 alert(ms) 观察一下传入的是什么
js 不强制需要行结束符“;”
在函数入口处 alert(ms) 观察一下传入的是什么
js 不强制需要行结束符“;”
其实我在firebug里面看到ajax返回多了2个空格,但是前面我用正则表达是清除了,但是就剩两个空格清不掉,不能完全清除。。返回的是" 1" 不是"1"
var str=xmlHttp.responseText;
var pass= str.replace(/\r\n/g,"");
语法错误了吧,前面两个break 缺少结尾分号,先补齐了。之后在firebug控制台下看报什么错了。
其实我在firebug里面看到ajax返回多了2个空格,但是前面我用正则表达是清除了,但是就剩两个空格清不掉,不能完全清除。。返回的是" 1" 不是"1"
var str=xmlHttp.responseText;
var pass= str.replace(/\r\n/g,"");
var pass= str.replace(/\s+/g,""); 这个才是清楚空格,你那个是清楚换行
var pass= str.replace(/\s+/g,""); 这个才是清楚空格,你那个是清楚换行
被你说对了~~没看清~~ 学得不好啊

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