C++ useful string functions tutorial
more functions here: http://www.cplusplus.com/reference/st...
0:25 string.length()
3:39 string.empty()
4:44 string.clear()
5:34 string1.append(string2)
6:36 string.at(int x)
9:00 string1.substr(int x, int y)
10:51 string1.insert(x,string2)
12:30 string1.find(string2)
13:58 string1.erase(int x, int y)

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