摘要: Equal, Greater or Less ThanAs well as the familiar equals sign (=) it is also very useful to show if something is not equal to (≠) greater than (>) or less than (<)These are the important signs to know:=If two values are equal, we use the "equals" signexample:2+2 = 4≠If two values ar 阅读全文
posted @ 2013-01-01 11:52 许仙儿 阅读(416) 评论(0) 推荐(0) 编辑