我想从字符串中获取特定类型的子字符串。例如,我希望能够从字符串Computer Science中获取子字符串String text = "I studied Computer Science";。另一个例子是从字符串Physics中获取子字符串String text = "I studied Physics for
我想获取URL中一些参数的值,我知道这个想法,但我不知道如何获取它们。local url="fbconnect://success?to[0]=213322147507203&to[1]=223321147507202&request=524210977333164"
我希望检测子字符串" to [“,并获取数字293321147507203我知道这个过程是检测子</em