20 lines
589 B
C++
20 lines
589 B
C++
/* 输出格式.cpp */
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#include <iomanip>
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#include <iostream>
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using namespace std;
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int main(int argc, char const *argv[]) {
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char s[20] = "this is a string";
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double digit = -36.96656;
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cout << setw(30) << left << setfill('*') << s << endl;
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cout << dec << setprecision(4) << digit << endl;
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cout << dec << 15 << endl;
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// setbase(int x)设置进制后，后面所有操作都是按照这个进制来计算！
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cout << setbase(10) << 15 << endl;
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//四舍五入,并保留2位有效数组
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float x = 6.6937;
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cout << float(int(x * 1000 + 0.5) / 1000.0) << endl;
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return 0;
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}
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