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                            > 在移動端中，當輸入的文本限制字數，給 textarea 設置 maxlength 也是不可靠的。咱們下載第三方 “輸入法”程序，使用里面的語言功能，會在多增加一兩個字。解決方案（下面是使用vue寫的）：


```
<textarea @input="textarea" maxlength="500"  v-model.trim="txt" ></textarea>

<script>
textarea(e) {
    var value = e.target.value
    if(value > 500) {
        // 重新賦值下
        this.txt = value.slice(0,500)
    }
}
</script>
```
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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