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  • AngularJS 简单加减乘除

     第一种方法:

        <div ng-app="">
            <div>
                <!--文本-->
                <input type="number" ng-model="A" placeholder="  输入数字1">
                {{a}}
                <input type="number" ng-model="B" placeholder="  输入数字2">
                =
                <!--//四个答案-->
                <h2 id="a1" style="display:none" onclick="w1()">{{A+B}}</h2>
                <h2 id="a2" style="display:none" onclick="w2()">{{A-B}}</h2>
                <h2 id="a3" style="display:none" onclick="w3()">{{A*B}}</h2>
                <h2 id="a4" style="display:none" onclick="w4()">{{A/B}}</h2>
            </div>
            <div>
                <!--// 四个按钮 加减乘除 点击哪一个显示哪一个-->
                <button id="AA" ng-click="a='+'">+</button>
                <button id="BB" ng-click="a='-'">-</button>
                <button id="CC" ng-click="a='*'">*</button>
                <button id="DD" ng-click="a='/'">/</button>
            </div>
    
            <script type="text/javascript">
                // <!-- 点击显示的,隐藏其它的-->
                var AA = document.getElementById("AA");
                var q = document.getElementById("a1");
                var BB = document.getElementById("BB");
                var w = document.getElementById("a2");
                var CC = document.getElementById("CC");
                var e = document.getElementById("a3");
                var DD = document.getElementById("DD");
                var r = document.getElementById("a4");
    
                AA.onclick=function(){
                    q.style.display = "block";
                    w.style.display = "none";
                    e.style.display = "none";
                    r.style.display = "none";
                }
                BB.onclick=function(){
                    q.style.display = "none";
                    w.style.display = "block";
                    e.style.display = "none";
                    r.style.display = "none";
                }
                CC.onclick=function(){
                    q.style.display = "none";
                    w.style.display = "none";
                    e.style.display = "block";
                    r.style.display = "none";
                }
                DD.onclick=function(){
                    q.style.display = "none";
                    w.style.display = "none";
                    e.style.display = "none";
                    r.style.display = "block";
                }
            </script>
         </div>

    第二种方法:

        <div ng-app="" >
            <div>
                <button ng-click="a='+';C = A+B">+</button>
                <button ng-click="a='-';C = A-B">-</button>
                <button ng-click="a='*';C = A*B">*</button>
                <button ng-click="a='/';C = A/B">/</button>
            </div>
            <div>
                <input type="number" ng-model="A" placeholder="  输入数字1">
                {{a}}
                <input type="number" ng-model="B" placeholder="  输入数字2">
                =
                <input type="number" value="{{C}}" placeholder="  输入数字2">
            </div>
        </div>
    永远的新手
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  • 原文地址:https://www.cnblogs.com/chenzhanxu/p/14771614.html
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