<input type="text" name="address" size="60" maxlength="60" style="color:gray" value="(测试)" onfocus="if(this.value=='(测试)'){this.value=''};this.style.color='black';" onblur="if(this.value==''||this.value=='(测试)'){this.value='(测试)';this.style.color='gray';}">