16 lines
335 B
C++
16 lines
335 B
C++
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#include <bits/stdc++.h>
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using namespace std;
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const int INF = 0x3f3f3f3f;
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int main() {
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string x = "ABCDEFG";
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cout << x.substr(0, 2) << endl; //从索引0开始，截取2个长度
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cout << x.substr(2) << endl; //从索引2开始，截取到结尾
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/*
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输出:
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AB
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CDEFG
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*/
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return 0;
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}
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