18 lines
363 B
C
18 lines
363 B
C
#include <stdio.h>
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#include <stdlib.h>
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int main()
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{
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char str[30] = "-20.30300 This is test";
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char *ptr;
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double ret;
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int i = 0;
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ret = strtod(&str[4], &ptr);
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int len = ptr - &str[i];
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printf("數字（double）是 %f\n", ret);
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printf("字符串部分是 |%s|\n", ptr);
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printf("len =%d ,&ptr=%d ,&str[i]=%d ", len ,&ptr ,&str[i]);
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return(0);
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}
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