下拉选择组件，支持只读模式

Tevin

2022-03-01 846a5ab3a1f0d399a9891bc0880765fbf1e14608

 forms/input/cInput.scss

@@ -14,8 +14,9 @@
            display: none;
        }
        .c-input-unit-text {
            padding-right: 30rpx;
            padding-right: 20px;
            color: #ccc;
            font-size: 32px;
        }
    }
}