有时候double型数据需要toString(),但又想保留小数,当值为整数,比如3.00时tostring后会变为”3″,具体说明见下:
1 |
string str0 = i.ToString("f"); //25.00
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2 |
string str1 = i.ToString("f1"); //25.0
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3 |
string str2 = i.ToString("f2"); //25.00
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4 |
string str3 = i.ToString("f3"); //25.000
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5 |
string str4 = i.ToString("f4"); //25.0000
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其他方式的如下:
2 |
string str0 = i.ToString("n"); //111,125.00
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3 |
string str1 = i.ToString("n1"); //111,125.0
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4 |
string str2 = i.ToString("n2"); //111,125.00
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5 |
string str3 = i.ToString("n3"); //111,125.000
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6 |
string str4 = i.ToString("n4"); //111,125.0000
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如果还是不行，就要添加其他设置：
System.Globalization.NumberFormatInfo provider = new System.Globalization.NumberFormatInfo();
string str1 = i.hours.ToString("f1", provider);
