vault backup: 2026-01-23 19:37:34
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@@ -10,7 +10,6 @@ aliases: empty
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#include <stdio.h>
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#include <stdio.h>
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int main(int argc, char const *argv[])
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int main(int argc, char const *argv[])
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{
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{
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int num = 255;
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int num = 255;
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@@ -34,9 +33,25 @@ int main(int argc, char const *argv[])
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}
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}
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```
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```
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2.定义`long num_long = 123456789`、`long long num_ll = 9876543210`,分别用对应控制符输出;
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2.定义`long num_long = 123456789`、`long long num_ll = 9876543210`,分别用对应控制符输出;
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```c
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#include <stdio.h>
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int main(int argc, char const *argv[])
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{
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long num_long = 123456789;
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long long num_ll = 9876543210;
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printf("%ld\n",num_long);
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printf("%lld\n",num_ll);
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return 0;
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}
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```
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3.定义`float pi = 3.1415926`,分别以默认小数形式、保留 2 位小数、指数形式(保留 3 位精度) 输出;
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3.定义`float pi = 3.1415926`,分别以默认小数形式、保留 2 位小数、指数形式(保留 3 位精度) 输出;
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```c
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```
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4.定义字符串`char *name = "Programmer"`,分别输出完整字符串、前 5 个字符、左对齐占 10 位、右对齐占 10 位的格式;
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4.定义字符串`char *name = "Programmer"`,分别输出完整字符串、前 5 个字符、左对齐占 10 位、右对齐占 10 位的格式;
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5.编写一个综合程序,结合格式化输入输出、类型转换、IO 流知识点,实现 “字符↔ASCII 码” 双向转换:
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5.编写一个综合程序,结合格式化输入输出、类型转换、IO 流知识点,实现 “字符↔ASCII 码” 双向转换:
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