1. Javascript 图表库比较 Ext JS 各种模型比较折腾，画出来还不错。 flot，配合jQuery写着比较顺手，但是功能不够多，内置符号只有圆圈，加个插件发现图例中不能显示符号。logscale还有坐标的分点都要自己实现。。。 2.gnuplot编译时报错，libpng冲突 http://harvey.nu/compiling_gnuplot_on_mac_os_x_libpng_conflict.html 3.Excel中方向键不工作 按一下ScrollLock试试 http://www-cs-students.stanford.edu/~edlee/microsoft_excep_tip_1.html 4.Linux播放白噪音 http://dirk.net/2009/07/14/white-noise-generator-for-linux/ install sox play -n synth 60:00 whitenoise 1. A few JS libraries for plotting Ext JS, with rather complicated data models, but worthy. Produced figures look good. flot, a smooth coding experience with jQuery, but also lack of features. E.g. by default the only available symbol is circle. There are plugins available for extra symbols, but only in legend...Also I have to specify all the ticks... 2. libpng confliction when compiling gnuplot. http://harvey.nu/compiling_gnuplot_on_mac_os_x_libpng_conflict.html 3. Arrow keys not working in excel Try to press t