\r是回车,\n是换行.有的控件是要\r\n才能达到换行的
enter+newline with different platforms:
windows: \r\n
mac: \r
unix/linux: \n
in "abc" + ”\n\rdef”, \n\r do not match any platform,so it is considered as \n and \r (which match unix/linux and mac),so there are two new lines.
in "abc" + ”\r\ndef” \r\n matches the windows platform,so it is considered as only one new line.
scim crushed, so just English.
*,包含了该包下面的所有类(不包含子包下面的类)
导入类,只能使用该包下面被导入的指定类
内容全部来源于网络收集，如有侵权，请联系网站删除：QQ：24596024