calculator/src/components/Calculator.vue

@@ -6,9 +6,7 @@
       <OperatorButton v-for="op in operators" :key="op.operator" :operator="op.operator" @click="appendOperator(op.operator)" />
       <button @click="appendDecimal('.')">.</button>
       <button @click="calculate">=</button>
-	  <button @click="deleteLastChar">del</button>
       <button class="ac-button" @click="clearDisplay">AC</button>
-	  
     </div>
   </div>
 </template>
@@ -31,8 +29,6 @@ const operators = [
   { operator: '%' },
 ];
 
-
-
 const appendNumber = (number) => {
   if (displayValue.value === '0' || displayValue.value === '表达式错误') {
     displayValue.value = number;
@@ -51,16 +47,6 @@ const appendOperator = (op) => {
 
 const calculate = () => {
   displayValue.value = eval(displayValue.value);
-  try {  
-      const result = Function('"use strict"; return (' + displayValue.value + ')')();   
-      if (!isFinite(result)) {  
-        displayValue.value = '错误';  
-      } else {  
-        displayValue.value = result;  
-      }  
-    } catch (error) {  
-      displayValue.value = '错误';  
-    }
 };
 
 const clearDisplay = () => {
@@ -69,12 +55,6 @@ const clearDisplay = () => {
   secondNumber.value = null;
   operator.value = null;
 };
-
-const deleteLastChar = () => {  
-  if (displayValue.value.length > 0) {  
-    displayValue.value = displayValue.value.slice(0, -1); // 删除最后一个字符  
-  }  
-};  
 </script>
 
 <style scoped>

使用文档 .md

@@ -1,7 +0,0 @@
-1. 使用Hbuilder打开项目目录，在该目录打开Hbuilder内置终端，输入yarn命令
-
-2. 再输入yarn dev命令启动服务器
-
-3. 打开内置终端生成的网络地址
-
-