c语言基础(10-字符数据类型和字符串).htm

语言基础(初学都必修)包括数据类型、运算符与表达式,运算符和表达式,逻辑运算符和逻辑表达式,C语言中的关键字,定义宏和使用宏定义,数据类型转换

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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">16<o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">-32768~32767<o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN style="COLOR: white; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">单精度短整型</SPAN><SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 3cm; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=113>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center>&nbsp;<SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD></TR>
<TR>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">long int<o:p></o:p></SPAN></P></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 85.2pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=114>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">32<o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">-2147483648~214747647<o:p></o:p></SPAN></P></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 81pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=108>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN style="COLOR: white; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">长整型</SPAN><SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center>&nbsp;<SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD></TR>
<TR>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">signed long int<o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">32<o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">0~4294967295<o:p></o:p></SPAN></P></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 81pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=108>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN style="COLOR: white; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">单精度长整型</SPAN><SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center>&nbsp;<SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD></TR>
<TR>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">float<o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">32<o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">6.4E-38~6.4E+38<o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN style="COLOR: white; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">浮点型</SPAN><SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 3cm; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=113>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN style="COLOR: white; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">基本数据类型</SPAN><SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD></TR>
<TR>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">double<o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">64<o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">1.7E-308~1.7E+308<o:p></o:p></SPAN></P></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 81pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=108>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN style="COLOR: white; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">双精度型</SPAN><SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 3cm; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=113>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN style="COLOR: white; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">基本数据类型</SPAN><SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD></TR>
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<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 0.5pt solid; WIDTH: 80.8pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 7.5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=108>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">long double<o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">80<o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">6.4E-4932~1.1E+4932<o:p></o:p></SPAN></P></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 73.9pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 7.5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=99>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN style="COLOR: white; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">长双精度型</SPAN><SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 77.45pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 7.5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=103>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center>&nbsp;<SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD></TR>
<TR style="HEIGHT: 7.5pt">