react渲染条件

1. 用数组渲染：

               <Search                placeholder="请输入验证码"                enterButton="获取验证码"                onSearch={this.sendcode}                size="large"                key="1"            />,            <Input                placeholder="请输入密码"                type="password"                size="large"                style={{                    marginTop:"10px"                }}                key="2"            />,            <Input                placeholder="请输入密码"                type="password"                size="large"                style={{                    marginTop:"10px"                }}                key="3"            />

2. 用括号渲染：

               <Select                onChange={this.movearticleclass}                size="large"                style={{                    width:"100%"                }}                showSearch={true}            >                <Option value="一级分类一">一级分类一</Option>                <Option value="一级分类二">一级分类二</Option>                <Option value="一级分类三">一级分类三</Option>            </Select>