fix: 验证码重复输入/限制输入数字

src/component/LoginPage/verificationCodeInput.vue

@@ -4,9 +4,11 @@
       <input v-for="(c, index) in getCtData" :key="index"
 		type="text"
         v-model="getCtData[index]" ref="input" 
+		inputmode="numeric"
 		pattern="[0-9]*"
         @input="e => {onInput(e.target.value, index)}" 
-        @keydown.delete="e=>{onKeydown(e.target.value, index)}"
+        @keydown="e => {onKeydown(e, index)}"
+        @keypress="e => {onKeypress(e)}"
         @focus="onFocus"
         :disabled="loading"
         >
@@ -55,6 +57,7 @@ export default defineComponent({
   },
   methods: {
     onInput(val, index) {
+      console.log('input',val,index)
 		// val = val.replace(/[^0-9]/g, '');
 	    val = String(val).replace(/\D/g, '');
 		this.getCtData[index] = val
@@ -80,14 +83,29 @@ export default defineComponent({
       index = (index + this.ctSize) % this.ctSize;
       this.$refs.input[index].focus();
     },
-    onKeydown(val, index) {
-      if (val === '') {
-        // 删除上一个input里的值，并对其focus。
-        if (index > 0) {
-          this.getCtData[index - 1] = '';
-          this.$refs.input[index - 1].focus();
+    onKeypress(e) {
+      // 只允许输入数字0-9
+      const char = String.fromCharCode(e.which);
+      if (!/[0-9]/.test(char)) {
+        e.preventDefault();
+      }
+    },
+    onKeydown(e, index) {
+      // 处理删除键
+      if (e.key === 'Backspace' || e.key === 'Delete') {
+        const val = e.target.value;
+        if (val === '') {
+          // 删除上一个input里的值，并对其focus。
+          if (index > 0) {
+            this.getCtData[index - 1] = '';
+            this.$refs.input[index - 1].focus();
+          }
         }
       }
+      // 阻止其他非数字字符
+      else if (e.key && !/[0-9]/.test(e.key) && !['Backspace', 'Delete', 'Tab', 'Enter', 'ArrowLeft', 'ArrowRight', 'ArrowUp', 'ArrowDown'].includes(e.key)) {
+        e.preventDefault();
+      }
     },
 
     sendCaptcha() {