热心网友

3^n在Word里则输入3n,选中n,把n作为上标（可按Ctrl+Shift+ =键),或用公式编辑器或用Mathtpye

热心网友

补充一下Mathtpye的下载地址是 ://jscz.driversky.com/down/ha_mathtype52a_zbf.exe

热心网友

3^n

热心网友

3n