if,else if,else 把shuifen设置在12-16或22-38之间,但是出现问题啦
slmin=22 slmax=38 glmin=12 glmax=16
JS里：我用if,else if,else 把 shuifen这个变量的值设置在12-16或22-38之间，但是测试的时候，100以上全部也能输入并保存，求大神看看我的代码哪里需要改正。求指导，求改正
if(parseFloat(shuifen)>=parseFloat(slmin)&&parseFloat(shuifen)<=parseFloat(slmax)){
danjia =slbiaozhunjia- (shuifen-slbiaozhun)*sljiagebodong;
document.getElementById("ruKu.danJia").value=danjia.toFixed(2);
}
else if(parseFloat(shuifen)>=parseFloat(glmin)&&shuifen<=glmax ){
danjia =glbiaozhunjia- (shuifen-glbiaozhun)*gljiagebodong;
document.getElementById("ruKu.danJia").value=danjia.toFixed(2);
}
else{alert("水分在"+glmin+"—"+glmax+"或"+slmin+"—"+slmax+"之间")}
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测试例子，100以上没问题
<!doctype html> <html> <body> <script> var slmin=22, slmax=38, glmin=12, glmax=16; var glbiaozhunjia = 20,glbiaozhun=5,sljiagebodong=1; var slbiaozhunjia = 60,slbiaozhun=2,gljiagebodong=1; function k(){ var shuifen = document.getElementById('sf').value; if(parseFloat(shuifen)>=parseFloat(slmin)&&parseFloat(shuifen)<=parseFloat(slmax)){ danjia =slbiaozhunjia- (shuifen-slbiaozhun)*sljiagebodong; document.getElementById("ruKu.danJia").value=danjia.toFixed(2); } else if(parseFloat(shuifen)>=parseFloat(glmin)&&shuifen<=glmax ){ danjia =glbiaozhunjia- (shuifen-glbiaozhun)*gljiagebodong; document.getElementById("ruKu.danJia").value=danjia.toFixed(2); } else{alert("水分在"+glmin+"—"+glmax+"或"+slmin+"—"+slmax+"之间")} } </script> <input id="sf" type="text" value="0"/> <input id="input1" type="button" value="校验" onclick='k()'/> <input id="ruKu.danJia" type="text" value="0"/> </body> </html>2019-07-17 19:07:27赞同 展开评论
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