setInt8()从DataView起始位置以byte为计数的指定偏移量(byteOffset)处储存一个8-bit数(一个字节). 语法 dataview.setInt8(byteOffset, value) 参数 byteOffset 偏移量,从头开始计算,单位为字节 value 设置的整数值 返回 undefined. 抛出的错误 RangeError 如果byteOffset超出了视图能储存的值,就会抛出错误 例子 var buffer = new ArrayBuffer(8); var dataview = new DataView(buffer); dataview.setInt8(1, 3); dataview.getInt8(1); // 3 规范 Specification Status Comment Typed Array Specification Obsolete Superseded by ECMAScript 6. ECMAScript 2015 (6th Edition, ECMA-262)DataView.prototype.setInt8 Standard Initial definition in an ECMA standard. 浏览器兼容性 Desktop Mobile Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari Basic support 9.0 15.0 (15.0) 10 12.1 5.1 Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile Basic support 4.0 (Yes) 15.0 (15) ? 12.0 4.2 相关内容 DataView ArrayBuffer